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Pettit Tie Coat Primer 6627 is a general-purpose chlorinated rubber type product used as a primer on metal surfaces and as a tie coat between different types of coatings. This versatile product can be used successfully above and below the waterline as a primer and over a variety of coatings as a tie coat.
When used over Pettit 6455/044 Metal Primer it forms an excellent, easy to use system for use on all underwater running gear. It is compatible with all Pettit antifouling bottom paints and with Easypoxy, vinyl alkyds and conventional alkyds. 6627 Tie Coat Primer can also be used on new and bare wood on boat bottoms to seal the wood before applying an antifouling paint.
| Dry Time Hours | To Recoat | To Topcoat |
|---|---|---|
| 90°F | 1 hours | 2 hours |
| 70°F | 2 hours | 4 hours |
| 50°F | 4 hours | 8 hours |
| 30°F | 8 hours | 16 hours |
- Finish: Flat
- Curing Mechanism: Air dry/oxidation
- Solids (theoretical): Weight- 57 +- 2%, Volume- 35 +- 2%
- Coverage: 225 sq. ft/gal. (spray), 280 sq. ft/gal. (brush or roller)
- VOC: 562 g/l (4.69 lbs/gal)
- Flash Point: 64Deg F
- Application Method: Brush, roller, airless or conventional spray.
- Number of Coats: One or Two
- Dry Film Thickness per coat: 2.0 mils (spray). 2.5 mils (brush or roller).
- Application Temp: 5Deg F. Min., 100Deg F. Max.
- Application Humidity: 0% R.H. min., 90% R.H. max.
- APPLICATION INFORMATION
Shake or stir the 6627 Tie Coat Primer thoroughly. Apply by brush, roller or spray. Thinning is not normally required for brush or roller application, however, small amounts of 97 Epoxy Thinner may be used if necessary to facilitate application. For spraying, use 97 Epoxy Thinner at levels of 5-10% by volume to ensure a smooth finish with minimal orange peel. Wet film thickness unthinned should be 5.7 to 7.1 mils per coat, which yields 2.0 to 2.5 mils dry film thickness. Suggested spray application equipment:
Conventional Spray: Binks - No. 29 or No. 62 Gun, 66 Fluid Tip & 66 PB Air Cap or DeVilbiss - JGA 502 Gun, E Fluid Tip & 78 Air Cap. Airless Spray: Graco 28-1 Pump with 817-819 Tip. -
SURFACE PREPARATION
Coating performance, in general, is proportional to the degree of surface preparation. Follow recommendations carefully, avoiding shortcuts. Inadequate preparation of surfaces will virtually assure inadequate coating performance.
Technical Specifications
Technical Information
- Can be used as a metal primer or as a tie coat.
- Recommended above and below the waterline.
- Compatible with all Petit antifouling bottom paints as well as all single component topside paints.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Reviews for Pettit Tie Coat Primer 6627
June 18, 2022
I used this tie coat primer over a sanded and prepped fiberglass canoe hull. It worked well under an automotive-paint finish (above water line) and gave surprisingly good results under Pettit Vivid anti-fouling bottom paint (below water line. Overkill for an old fiberglass canoe? Perhaps, but I was practicing for replacing the bottom paint on my 1984 sailboat.
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June 4, 2016
Verified Purchase
Applied very easily by brush. Coverage was right on the mark from the specs on the can.
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