Complete guide to restoring polycarbonate car headlights

Professional FUCtion Manual Dedicated to Diagnosis, Preparation, Sanding, Polymer Application, MicrocrePe, Security, Common Errors, Technical Tips and 60 Faq.

Polycarbonate headlights can become opaque, yellowed, rough, scratched or marked by microcregs. In many cases the deterioration concerns the external surface and can be corrected without replacing the complete headlight, as long as the work is performed with a precise and controlled method.

This guide collects the Fuzion experience with private individuals, detailers, body shops, workshops and professional operators. The goal is not only to explain how to vaporize the polymer, but illustrate the entire procedure: recognizing the damage, choose the initial grain, completely remove the old protection, prepare the polycarbonate and correct an imperfect result.

Rapid index

• Lighthouse diagnosis
• Polishing, transparent or polymer
• FUNZION GAMMA and product selection
• Preparation and masking
• Professional sanding
• Application of the polymer
• MicrocrePe and Transparent Professional
• Error correction
• MSDS, security and storage
• Common errors and false myths
• Complete FAQ

1. Diagnosis: understand the defect before starting

Not all visible defects have the same origin. Before sanding it is important to verify that the problem is actually on the outer surface of the polycarbonate.

Normally restored defects

• external opacity;
• yellowing;
• oxidation and loss of brilliance;
• rough surface;
• fine scratches and washing signs;
• deteriorized original transparent protection;
• surface microcrelets, especially with transparent professional and a deeper preparation.

Defects that this treatment cannot solve

• condensation or internal opacity;
• water infiltrations due to gaskets or caps;
• burned or blackened interior reflector;
• cracks passers-by and structural breaks;
• broken fixing supports;
• damage on the inner side of the lens.

Why do the headlights become opaque?

The polycarbonate is light and impact resistant, but it is originally protected from a superficial layer. UV rays, hot, cold, salt, aggressive detergents, brushes, insects, gravel and exposure years progressively consume this protection. When deteriorates, the material loses transparency, holds dirt, yellow and can develop microcregs.

The problem is not only aesthetic. An opaque lens can reduce and disperse the useful light on the road. A reset correctly improves the appearance and can retrieve part of the brightness lost for surface degradation.

2. Polishing, transparent bodywork or vaporized polymer?

Traditional polishing

Abrasives and polish smooth and polish the surface. It can work on light defects, but the result depends on the cycle used and the final protection. The polishing alone does not always recreative a uniform and lasting finish after removing the original protection.

Transparent bodywork

Some body shops use a transparent automotive. Requires preparation, masking, adequate environment and correct spraying. It can offer a good finish, but on the microcregs and on specific defects may not penetrate as a dedicated formulation rich in resins.

Restoration with vaporized polymer

The FUCtion system provides for the removal of the deteriorated surface and the subsequent application of the polymer by vaporizer. The product works on the properly prepared polycarbonate and creates a transparent finish without a traditional painting cycle.

The practical advantage is that the final phase is rapid and clearly visible: the prepared surface returns transparent and brilliant. However, this does not reduce the importance of preparation.

3. FUNZIONE RANGE: Blue and Transparent Professional

Fuition offers complete kits, single, multipack, vaporizers and spare parts. You can buy the complete system for the first job and then only reorganize the necessary component.

Blue is not an amateur or cheap product: it is already a professional solution. Transparent Professional is the higher formulation Fuzion, with a greater amount of resins to increase the covering and penetrating action.

Which packaging to choose?

• Complete kit: for those who start and do not have vaporisers and accessories.
• Reload: for those who already have a compatible device.
• Multipack: for detailers, body shops, workshops and frequent users.
• Parts: to replace vaporizer, spout or other components without buying a new complete kit.

4. Preparation of the work area

Whenever possible, work indoors in a clean, ventilated and windless environment. Dust, rain, humidity and contamination can compromise the final phase.

1. Wash the lighthouse and the surrounding area.
2. Remove insects, waxes, silicone, grease and residues.
3. Dry and control damage with good lighting.
4. Protect paint, bumper, gaskets and edges with masking tape.
5. Prepare abrasive cards, clean water, cloths and vaporizer.

Masking serves especially during sanding

The tape protects the body from accidental contacts with abrasive paper. After sanding it can be removed and the area can be cleaned before the polymer apply. Generally it is not necessary to mask the entire car during the final phase, because the vaporized polymer does not adhere to the paint in the same way that adheres to the sanded polycarbonate.

This does not mean working without control. The spout must remain directed towards the lens, avoiding a useless exposure of the surrounding parts.

5. Sanding: the heart of the restore

The Fuzion kits normally include the P180, P280, P360, P600, P800 and P1200 grains. This sequence also allows those who are at first experiences to complete the job. Professionals can use different machines, disks and cycles, including P1500 or P2000 according to their own method.

Choice of initial grain

The table is only indicative. There is no universal initial grain. The old protection must be removed without unnecessarily thinning the polycarbonate.

Sanding procedure step by step

1. First grain: completely remove deteriorated protection and create a uniform base.
2. Intermediate grains: each step must eliminate the signs left by the previous grain.
3. Crossed movements: changing direction helps to recognize the scratches still present.
4. Cleaning: remove abrasive residues between one grain and another.
5. Final check: the lens must appear uniformly opaque, without shiny zones or untreated edges.

How to understand if the old protection has been removed?

The most common error is only sanding the yellow part and leave portions of the original protection. The polymer then reacts differently, creating stains, poor adhesion or irregular transparency.

The prepared surface must be homogeneous. When woven there are no areas that react very differently. Even corners and edges require attention, without touching the paint.

Manual sanding or with machine?

Manual sanding is slower but easier to control and is indicated for those who start. Machine processing is faster, but requires experience: excessive pressure or heat can create depressions, overheating or new damage.

6. Cleaning before application

1. Remove the masking tape.
2. Wash or carefully clean the lens.
3. Eliminate abrasive and residue powder.
4. Dry perfectly.
5. Do not touch the surface prepared with dirty or greasy hands.

Water, grease, dust or silicone can create defects. Before application the lens must be dry and uniformly opaque.

7. Application of the vaporized polymer

1. Pour an adequate quantity into the vaporizer.
2. Turn on the device and wait for the correct heating.
3. Brick up the spout without touching the lens.
4. Starting from an area and proceed in an orderly manner.
5. Move slowly and with constant speed.
6. Observe the passage of the surface from opaque to transparent.
7. Do not stop too long at the same point.
8. Complete the whole lens without leaving untreated areas.

An excessive amount of product is not needed. More polymer doesn't automatically mean greater brilliance. Distance, speed and uniformity determine the finish.

Distance and speed

There is no single measure suitable for every spout and environment. The steam must reach the lens controlled. Too much distance due to dispersion; A too close location or too slow passage can create accumulations. Follow the visual transformation and advance when the surface becomes transparent and uniform.

How long does it take?

The preparation occupies most of the time. The final passage of the polymer is normally rapid. It is not necessary to accelerate the sanding only because the final visual effect appears in seconds.

8. MicrocRepe: the advantage of Transparent Professional

Polycarbonate superficial microcregreees can be difficult to improve with polishing or normal transparent. Transparent Professional, thanks to the greatest content of penetrating and opaque resins, can significantly reduce visibility.

Recommended procedure for microcrePE

1. Check that they are not passing crepe.
2. Sand more in depth, normally starting at least from P180 / P220.
3. Uniform the entire area.
4. Continue with subsequent grains by eliminating all the previous scratches.
5. Clean and dry perfectly.
6. Apply Transparent Professional with a slower and controlled passage, so as to favor the action of the resins on the prepared surface.

Fuzionally indicates an improvement up to about 90%. Many users report a still higher visual recovery and, in favorable, almost complete cases. It is not possible to guarantee the same result on each headlight, because depth, origin and conditions of the damage may vary.

9. Correct an imperfect result

If after the first pass, small scratches remain, opaque areas or an irregular finish:

1. let treatment stabilize;
2. uniformly sand with the last suitable grain;
3. create an opaque and regular surface, without depressions;
4. clean and dry;
5. apply a second polymer hand.

The first application can become a new base. The second hand can be more uniform, brilliant and bright. It is not always necessary to completely remove the first treatment when it is healthy and the problem concerns only the finish.

10. Recovery and storage of unused liquid

1. Turn off the device.
2. Wait a few minutes to cool down.
3. Pour the remaining clean liquid in the original package.
4. Close the container well.
5. Store in a cool and ventilated place.

Do not restore the liquid bottle still very hot or contaminated by water, dust or abrasive residues. Proper storage reduces waste and allows re-use.

11. MSDS, Documentation and Security

Fuzion Car Headlamp Remover is supplied with an MSDS card prepared according to ISO 11014: 2009. Includes information on composition, dangers, first aid, manipulation, storage, personal protection, disposal and transport.

The availability of this documentation is important for traceability and transparency. It does not certify the final result and does not replace a correct procedure, but allows private and professionals to learn about the safety indications of the product.

The card shows the H412 classification: harmful to aquatic bodies with long-term effects. Do not disperse the product in the environment or discharges. Dispose of content and container according to local provisions.

12. The 20 most common errors

1. Do not recognize an internal defect.
2. Leave part of the old protection.
3. Only the yellow area sand.
4. Start with a grain too fine.
5. Start too aggressively without need.
6. Jump too many grains.
7. Spend too early to the next grain.
8. Do not clean between the various phases.
9. Overheat the polycarbonate with the machine.
10. Do not protect the surrounding paint.
11. Leave water on the lens.
12. Touch the clean surface with greasy hands.
13. Pass the steam too quickly.
14. Stand too long at the same point.
15. Use too much product.
16. Work in the presence of dust or wind.
17. Try to repair structural cracks.
18. Return the product still hot.
19. Contaminate the original container.
20. Attribute the problem to the polymer without checking the preparation.

13. False myths to avoid

More polymer means longer life

False. The duration depends on the formulation, preparation, exposure and uniformity of the application, not from excessive accumulation.

The finest card is always the best

False. A very fine card cannot remove hard protection or deep microcreaps.

Blue is an amateur product

False. Blue is already a professional product; Transparent Professional is the upper formulation.

The polymer eliminates any crack

False. It can improve superficial microcregreees, non-structural or passers-by cracks.

Vaporization compensates for a wrong sanding

False. The final passage highlights the quality of the preparation; It does not replace it.

For the final passage, the whole car must be masked

Normally false. Masking is essential during sanding; The final phase requires a controlled application on the clean lens.

14. Raccomandazioni del tecnico Fuzion

• Dedicate more time to the preparation than at the final passage.
• Check the lighthouse for more angles and with side light.
• Don't change grain until the previous scratches have disappeared.
• Choose Transparent Professional and a deeper preparation in the presence of microcregs.
• Upon first use, try speed and distance on a small area.
• To correct, do not add product randomly: opaque, clean and repeat.
• Keep the remaining liquid only when it is clean and cooled.
• Read the MSDS and use adequate protections.

15. FAQ - Frequently asked questions

1. Can the kit be used by a beginner?

Yes. Complete kits contain the basic equipment, but the preparation must be performed carefully.

2. Which abrasive grains are normally understood?

P180, P280, P360, P600, P800 and P1200, unless otherwise indicated in the product sheet.

3. Do I have to use all the grains?

Not always. The cycle depends on the initial condition, but each scratch left by the previous grain must be eliminated.

4. Can I start directly from the P600?

Only when the old protection has already been removed and the damage is light.

5. Can I finish with P2000?

Yes. Many professionals use P1500 or P2000 according to their cycle.

6. Is it preferable to sand water?

Many cycles use water for cleaning and control. Follow the abrasive indications and your professional method.

7. Can I use an orbital sander?

Yes, checking pressure, speed and temperature carefully.

8. How do I understand that the original protection has been removed?

The surface is evenly opaque, without a shiny islands or areas that react differently when wet.

9. Do the corners also need to be sanded?

Yes, the whole lens must be uniform, protecting paint and seals.

10. Is masking mandatory?

It is strongly recommended during sanding.

11. Do I have to mask again before applying the polymer?

Normally no. Remove the tape, clean the lens and apply accurately.

12. Can the polymer damage the paint?

Normally it does not adhere to the paint as the sanded polycarbonate, but it is still appropriate to avoid unnecessary exposures.

13. How much should the spout near?

Close up to get a controlled steam action, without touching the lens.

14. How do I understand that the vaporizer is ready?

Wait for the correct heating and verify that the steam flow is regular.

15. should the step to be fast?

It must be slow and uniform, without stopping too long at the same point.

16. Can I run more steps on the same area?

Yes, with control. For an important correction it is preferable to opacify and apply a new hand.

17. Why does the lighthouse remains opaque?

Common causes are residues of old protection, deep scratches, contamination or passage too fast.

18. Why are scratches still visible?

They have not been completely eliminated during sanding. The polymer cannot hide profound scratches left on the surface.

19. Why did stains appear?

Generally for irregular preparation, contamination or residues of original protection.

20. Can I correct the job without starting from scratch?

Yes. If the first hand is healthy, it can be uniformly opaid, clean and covered.

21. Can I apply a second hand on the same day?

Wait for the first application to be stable and workable.

22. should the first hand be removed completely?

No, not when only the finish need to be improved.

23. How long does it take Blue?

Individually about 3 years, based on preparation, climate, exposure and washing.

24. How long does Transparent Professional last?

Up to about 5 years in suitable conditions.

25. Are these durations guaranteed on each vehicle?

No. They are indicative values and depend on numerous variables.

26. Blue remains blue on the lens?

No. The liquid is blue, but the properly treated surface is transparent.

27. Transparent Professional is more covering?

Yes. The largest content of resins offers a superior covering and penetrating action.

28. Is Blue suitable for professionals?

Yes. It is a professional product suitable for workshops, detailers and body shops.

29. When to choose Transparent Professional?

When you want maximum durability, greater coverage or surface microcregree surgery.

30. The product eliminates the microcregs?

It can strongly reduce visibility, but cannot repair structural cracks.

31. Why start from P180 / P220 on microcrePPE?

To remove the deteriorated material and correctly prepare the surface at the resin action.

32. Can the result exceed 90%?

Yes, many users report it, but each lighthouse is different.

33. Can it be used on the headlights of the motorcycles?

Yes, when the external lens is in compatible polycarbonate and the defect is superficial.

34. Can it be used on trucks and camper?

Yes, after the same checks on the material and the conditions of the lighthouse.

35. Does it work on glass headlights?

The system is designed mainly for polycarbonate and does not work on the glass in the same way.

36. Can it be used on the rear lights?

Only after verifying material, color and compatibility and performed a prudent test.

37. Can it be used on visors or windshield?

Generic use is not recommended; Safety, field of vision and material require a specific assessment.

38. How much polymer serves for two headlights?

It depends on size, shape, technique and number of steps.

39. Can I fill the vaporizer abundantly?

Yes, respecting the limits of the device. The remaining clean liquid can be retrieved after cooling.

40. Can I leave the liquid in the vaporizer?

It is preferable to retrieve it and conserve both the product and the device correctly.

41. Can I put the hot liquid back in the bottle?

No. It is necessary to wait for it to cool down enough.

42. How should the polymer be preserved?

Well closed, in a cool and ventilated place, away from heat, flames and children.

43. Does the product have a deadline?

Refer to the label, lot and the indications reported on the package.

44. Do you need a respiratory protection?

Working in a ventilated environment and use adequate respiratory protection based on risk assessment.

45. Do you need gloves and glasses?

Yes, they represent a good practice to avoid contact with skin and eyes.

46. Can I work in a closed garage?

Only with effective ventilation. Do not inhale the steam directly.

47. Can I work close to flames or stoves?

No. Keep product and device away from flames and unconstrained heat sources.

48. Can I pay the remaining product in the drain?

No. It must be disposed of according to local provisions.

49. What does MSDS mean?

It is the safety data sheet of the material, containing information on composition, risks, first aid, conservation and disposal.

50. MSDS certifies the final result?

No. Documenta security and technical information; The result depends on the product, the lens and the procedure.

51. Does the documentation concern both Blue and Transparent?

Both belong to the Professional Fuzion range; Check in the product tab or assistance the document applicable to the specification supply.

52. Why choose a complete kit?

To receive vaporizer together, polymer, accessories and basic abrasives.

53. When buying a top-up?

When you already have a compatible vaporizer.

54. Professional packs are available?

Yes, multipacks are available and quantities suitable for frequent use.

55. Spare parts are available?

Yes, depending on availability: kits, top-ups, vaporizers and single components.

56. Does the complete kit covered by warranty?

The products are covered by the warranty conditions shown in the product sheet and the applicable legislation.

57. Can I contact Fuzion before starting?

Yes. Assistance can help in the choice between Blue and Transparent and explain the general method.

58. Can I send photographs of the lighthouse?

Photographs can help you understand if the defect appears outer, but they don't always replace direct control.

59. The treatment increases the power of the bulb?

No. Restores the transparency of the lens; Do not change the power of the light source.

60. Why choose Fuzion?

For the complete range, the two professional formulations, recharges and spare parts, practical experience, technical support and security documentation.

Discover the FuCion kits for the restoration headlights

The category includes complete Blue and Transparent Professional kits, single, multipack recharges and spare parts for individuals, detailers, workshops and body shops.

Go to the Headlights Recovery Kits and Parts

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