1994 MAZDA MX-5 Workshop Manual

UNDERCOATING, PVC PAINTING AND RUST PREVENTIVE WAX TREATMENT u Procedure for PVC (polyvinyl chloride) Painting Body panel damaged I Repair damage (including + Prime* 1 "Sand with #2# 40-#400 paper + Mask Apply PVC c + Dry* I I *Sanding not necessary if all oil and grease completely I removed Color coat c I Repair paint Mask Apply PVC I 'I Color coat Gartner Banana

UNDERCOATING, PVC PAINTING AND RUST PREVENTIVE WAX TREATMENT - Repair of PVC (polyvinyl chloride) paint surface (repair of deep scratch) Repair base coat (including putty) Repair PVC paint v Mask 1 Apply PVC Remove masking Refer to next page + - Done in same way as ordinary body repair. Thoroughly clean away dirt from the Shave until smooth surface. For places where the paint film is scratched, use a knife or similar tool to carefully shave the surface until it is smooth. Use sandpaper (#120-#130) to roughen to assure good adhesion. Mask wide area Use masking over a wide area, be- cause the mist will scatter widely. Depending upon the size of the pattern, adjust the distance of the spray gun from the surface and/or the air pressure; apply one or two coatings. Pattern estimation conditions 111 Large I Small I Smooth finish I U For partial area painting, spray smoothly, taking care that no un- even surfaces are formed. Spray dismce Coating Air pressure After repair Before repair 10-20 cm (3.9-7.9 in) 1-2 294-392kPa (%^4?6/CZ) After finishing with the tools (spray gun, etc.), wash them im- mediately with water. (Even paint thinner will not be effective if hardening is complete.) Remove masking immediate- ly after coating is finished. (If removed after drying, edges might also peel off.) Wipe away overspray with a damp cloth before it dries. (If after drying, paint thinner will not be effective.) Damp cloth 20-40 cm (7.9-15.7 in) 2-3 392-588 kPa 4-6 kg/crd j (0.6-0.9 psi 20-30 cm (7.9-1 1.8 in) 1-2 (?%it:::') 0.6-0.7 psi d Gartner Banana

UNDERCOATING, PVC PAINTING AND RUST PREVENTIVE WAX TREATMENT Air dry a minimum of 4-6 hours [20°C (68OF)l. L Heat dry a minimum of 30-40 minutes [60°C (140°F)]. Color coat i Apply coating after PVC paint film is thoroughly dry. Sanding is not necessary if all oil and grease were completely removed. Conditions such as air pressure, paint viscosity, etc. can be same as for ordinary body coating. -1 Done in same way as for ordinary body coating. Nozzle type A Nozzle type B RUST PREVENTIVE WAX TREATMENT WAX APPLICATION PROCEDURE Preparation of equipment 1. Prepare equipment suitable for the wax chosen. 2. Use the correct nozzle, spray pattern, and in- jection pressure based on instructions provided for the wax. 3. If necessary, clean the nozzle with thinner before beginning work. Preparation of vehicle (or parts) 1. Scrape mud, etc. off the wax application area. 2. Dry any water collected at the wax application area. 3. The temperature of the vehicle body should be kept at more than 10°C (50°F) during the opera- tion. 4. Close all windows of the vehicle. Caution When repairing a damaged part, complete painting first, then apply the wax. The reasons are: a) The wax is sometimes dissolved by heat [more than 120°C (248OF)I during the drying process, resulting in deteriorated anticor- rosion effects. b)lf the wax applied before painting is smeared over the paint application surface, poor painting will result because the wax repels the paint. Gartner Banana

UNDERCOATING, PVC PAINTING AND RUST PREVENTIVE WAX TREATMENT ( Final application area ) I I &qc=+ / ., Water dram hole Wax application operation 1. Apply wax to areas shown. - (Refer to pages 79-81 .) 2. If there is no hole for wax application operation, make a 10mm (0.39 in) hole in the application area. 3. After completing the wax application, apply the wax on the edge of the hole and close the hole with a grommet. 4. During wax application, move the nozzle slowly to apply the wax uniformly and heavily. Note To ensure wax application, make sure that the wax flows from a joint or hole. - 5. Apply wax to new parts before assembly. Avoid making holes as much as possible. Cleaning 1. Wipe away any excess wax. 2. Let the vehicle stand for one hour after complet- ing the wax application. 3. Verify that drain holes in the doors, fenders, etc. are not clogged. d If there is any clogging, open it completely. Gartner Banana

UNDERCOATING, PVC PAINTING AND RUST PREVENTIVE WAX TREATMENT RUST PREVENTIVE WAX TREATMENT - Rust preventive wax treatment is applied to the shaded areas shown in the illustrations to prevent rusting. Gartner Banana

UNDERCOATING, PVC PAINTING AND RUST PREVENTIVE WAX TREATMENT Gartner Banana

UNDERCOATING, PVC PAINTING AND RUST PREVENTIVE WAX TREATMENT Gartner Banana

Gartner Banana