Repair Process II

1. Tools needed for the repair

• InterTroton or Master silicone remover
• InterTroton or Master thinner for acrylic products
• Sand paper (for the beginning, for dry) P120-P320, finishing P400-P500 (for dry) P800-P1200 (for wet) for the machine, grindstone, mechanical equipment (see the surface preparation), containers to mix products
• Varnish tape, paper, cover foil to protect a vehicle (parts which are not repaired), antistatic cloth
• Japanese putty knives to apply polyester putty
• InterTroton or Master putty
• InterTroton or Master acrylic primer, for some primers it is better to use a reactive primer to increase anticorrosion protection
• Base coating (colour)
• InterTroton or Master clearcoat

2. Step by step process

Substrate preparation

• On a repaired part, do a thinner test (surface preparation)
• If the result is positive – remove old coating up to bare steel, if negative – you can follow next steps in the process
• Remove dust using compressed air
• Clean the repaired part (silicone remover)
• Cover not repaired parts
• Sand a damaged part starting from a sand paper P120 – P180, remove corrosion thoroughly mechanically or manually (see surface preparation)

Reactive primer application

• Using compressed air remove dust
• Clean the repaired part (silicone remover)
• In hard to reach places, internal and external side skirts, underbody and where steel is cleaned from corrosion apply InterTroton or Master reactive primer (according to Technical Data Sheet of a product)

Acrylic primer application

• Then apply InterTroton or Master acrylic primer (according to the Technical Data Sheet of a product)
• After hardening, sand the acrylic primer in a part where polyester putty is to be applied (sand paper for dry P180)

Putty application

• Remove the rest of dust, using compressed air, cleaning with silicone remover (after a thorough remover evaporation)
• Apply polyester putty in two layers with a correct time of drying (according to the Technical Data Sheet of a product)
• Sand the putty with the sand paper P120-P180 at first, finishing with P220-P320

Reactive primer application

• Using compressed air, remove dust, clean with silicone remover (after a thorough remover evaporation)
• Apply reactive primer in sanded places (putty-primer-steel), according to the Technical Data Sheet of a product, the same which was used earlier

Acrylic primer application

• In order to fill and isolate from reactive primer, apply acrylic primer – the same which was used earlier on a repaired part (according to the Technical Data Sheet of a product).
• After hardening, sand the primer with the sand paper P400-P500 (for dry machine or manual), or P800-P1200 for wet (sanding the surface on wet, remember to remove water straight after sanding). We recommend sanding on dry.

Base coat application

•  Using compressed air, remove dust and pollution, clean the repaired part and surroundings (silicone remover)
• Cover not repaired parts
• Clean the prepared part with the silicone remover, after evaporation the surface can be wiped with an antistatic cloth
• Prepared base coat apply on the repaired part (according to recommendations of a manufacturer)

Clearcoat application

• After a correct time of base coat drying (see manufacturer’s Technical Data Sheet) (using antistatic cloth, wipe dust or impurities from the surface)
• Apply clearcoat (1,5-2 layers for VHS clearcoats, 2 layers for MS, HS clearcoats), see Technical Data Sheet for using a product

3. Warning!

• Use only original products recommended by a manufacturer
• Follow Technical Data Sheets of a product
• Dry processing of materials is recommended
• During works, use personal protective clothing
• Use IR drying to speed up the drying process of materials
• The temperature and moistness are crucial for products and the repair
• On reactive primer, do not apply polyester products (putties, primers)