Sherwin-Williams National Rule Recommendation

Sherwin-Williams National Rule Recommendation
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1. Remove defective Seam Sealant from entire length of the roof ditch rail. Strip all paint and primer from this repair area. This can easily be accomplished using an angle grinder and a 3M Roloc Clean 'N Strip Disc (part number 07466). Solvent clean this area with SC 158 surface cleaner.

2. Prep and clean the roof ditch area with 180 grit sand paper and blow off with compressed air.

3. Wipe the repair area with SC 158 surface cleaner.

4. Mix and apply 1 medium coat of NP75 (.8 to 1.3 mils.) a true DTM primer surfacer. This is a non / iso product that offers great physicals to bare steel along with fast cure rate. This product can be used in open shop environments. Allow this to dry 60 minutes, and abrade the primer surface with a red scotch brite pad.

SEE COMMON TASKS TO ALL REPAIRS

5. Mix and apply 2 coats of P30 Color Prime at up to 3.5 to 4.0 mils. P30 is a premium urethane primer surfacer with exceptional flexibility, adhesion, and speed of cure. This can be mixed in a color that closely mimics the vehicle color. This can be easily sanded at 45 to 50 minutes with 400 grit sandpaper and finish sanded with 600 grit and prepped for top coat application. An optional step is that the roof panel repairs could be sealed using either S65 in 2K form, or S-P30 color seal.

6. Blow off the roof ditch with compressed air; wipe the repair area with SC 158 surface cleaner, and tack off to remove loose dust and debris.

7. Mix and apply Ultra Base B7 in 2K configuration (mixed 16-16-1 with UH904) is then applied to coverage over the repaired areas. This mix configuration offers excellent adhesion and flexibility. Let flash for 15 minutes.

8. Mix and apply CC930, Ultra Speed / Plus Performance Clearcoat applied in a WOW (limited flash) scenario. This clearcoat offers an exceptional appearance, flexibility, and dry times. Bake at 140° F for 15 minutes.

9. Demask the vehicle and deliver to the customer.