Pettit Tie Coat Primer 6627
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1 – 2 of 2 Reviews
Most Recent
Longmont, CO
5 out of 5 stars.
Appears to have worked perfectly first time used.
2 years ago
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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Adirondack mts
5 out of 5 stars.
Excellent base coat primer
8 years ago
Applied very easily by brush. Coverage was right on the mark from the specs on the can.
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1 - 4 of 4 Questions
Q: null I plan to apply this Tie Coat Primer on a wood hull (marine plywood) coated with CPES Penetrating Epoxy. Pettit's instructions for bare wood call for 25% thinning with Pettit 97 Epoxy Thinner. Does this apply in my case as well with the wood sealed with Penetrating Epoxy?
3 years ago1 Answer
A: No. Follow the instructions for fiberglass.
3 years agoHelpful?
Q: null Is Pettit Tie Coat 6627 a product that may be used over unknown bottom paints prior to using a barrier coat such as Total Protect? Portions of the hull below the waterline are exposed due to wear and need to be repainted. This Whaler also has ""crazing"" issues so a barrier coat is needed. There appears to be at least one epoxy coat of unknown vintage followed by subsequent single part bottom paints. Rough sanding the hull has been done but there remain areas of sound barrier coat and/ or paint.
7 years ago2 Answers
A: You will find that Jamestown includes superb technical data sheets for all of its products. Look for the link in the left hand gutter. Here is what you would have learned had you clicked on the Tie Coat Primer link: 6627 Tie Coat Primer 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 topside finishes. 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. We apply endless gallons of this product in our vessel conservation projects, but never, never, never apply it over ANY existing coating, no matter what the TDS says above. Doing so means you are betting that whatever the existing coating may be is still well-adhered to the wood or metal beneath the existing coating. Applying it over any antifoul in particular is to race away on a fool's errand. Antifoul is ablative – it sloughs off over time, which necessarily means that it will take the Tie Coat and any topcoat paint off with it. Sorry, but there are no shortcuts to executing this task correctly. Strip to bare material – wood or metal, followed by three coats of either JD's or Smith's penetrating epoxy. Now you have the perfect storm for applying the Tie Coat followed by either antifoul or other bottom or topside paint. Michael Claudon Snake Mountain Boatworks LLC
7 years agoHelpful?
Q: null what is the Maximum recoat time?
10 years ago4 Answers
A: The can just lists minimum recoat times depending on temperature. There is no mention of a max, so if it's just been a day or two you're probably ok; however, if it's been a long time you might want to check with Pettit.
10 years agoHelpful?
Q: null I want to paint my mast as simply as possible after using alumniprep 33. Does Petit 6455 metal primer followed by petit 6627 tie coat primer, then petit easypoxy sound OK? Jim
13 years ago1 Answer
A: I have not used Tie Coat on metal. I did use it under Hydrocoat to prime bare wood. I tried the spec thinner (12097) but it evaporated too fast. I then used alcohol for thinning with good success. Don't panic when you pour in the alcohol and it turns into cottage cheese - just stir well. The Hydorcoat works great at least in New England with just a coat a year and more than a month between application and launching.
13 years agoHelpful?
