Repair Process I

1. Tools needed for the repair

• InterTroton or Master silicone remover
• InterTroton or Master thinner for acrylic products
• Sand papers (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

Surface 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
• Clean the repaired part (silicone remover)
• Sand a damaged part starting from a sand paper P120 – P180
• Using compressed air remove dust and pollution

Putty application

• Clean the repaired part (silicone remover)
• Apply polyester putty in two thin layers following the appropriate time of drying assuming that the surface is without any signs of corrosion (bare steel or old coating in a very good condition)
• At the beginning, sand putty with sand paper P120-P180, finishing P220-P320
• Using compressed air remove dust and pollution

Primer application

• Clean the repaired part (silicone remover)
• Protect not repaired parts
• Clean the repaired part again (silicone remover), after a thorough remover evaporation
• Apply acrylic primer (for bare steel, without any signs of corrosion e.g. from Master – V2012 or V2018. Before application some of primers, it is recommended to apply a reactive primer in order to increase anticorrosion protection), according to a Technical Data Sheet of a product
• After hardening, using sand paper P400-P500 sand the primer (for dry machine or manual), or P800-P1200 for wet (sanding the surface wet remember to remove water straight after sanding). We recommend to sand on dry.
• Using compressed air, remove dust and pollution, clean the repaired part and surroundings (silicone remover).

Base coat application

• Protect not repaired parts
• Clean what is to be repaired with silicone remover, after evaporation wipe the surface with the antistatic cloth
• Apply a prepared base coat on the repaired part (according to manufacturer’s recommendations)

Clearcoat application

• After a correct time of base coat drying (see the Technical Data Sheet of a base coat’s manufacturer) (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 the 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)