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Old 07-21-2013, 09:55 PM   #1
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Exterior Door Veneer


I have two sets of exterior doors. When originally put in, it appears that these are standard 1-3/4" thick, however, are veneered on both sides. They have weathered and the veneer cracking/peeling, etc...looks terrible. Any hope of saving these? Paint? Varnish? or just replace with a solid wood door panels?

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Old 07-22-2013, 09:34 AM   #2
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Exterior Door Veneer


When the veneer is lifting off the wood, you are past the point of saving the veneer and its bond to the wood.

A veneered door can be protected from sun and weather with a *marine-grade* (meaning for boats) finishing system; typically a high-end varnish such as Epifanes Gloss and a solvent-borne epoxy primer...Smith's MultiWoodPrime...but test first on a small corner of the door with some lacquer thinner, as some residential-quality-door veneer-glues nowadays are the low-cost ones that actually let go when the higher-performance solvent-borne finishes are used on the wood.

In years past veneered doors had very good exterior-grade glues that would not let go for anything, but in this day and age of governments forcing manufacturers to make everything waterborne regardless of longevity and manufacturers trying to cut their costs, quality suffers all up-and-down the supply chain.

Any clear finish on wood needs to have enough film thickness to protect the underlying wood until it is time for maintenance coats. The coating manufacturer should say what the required coverage is, meaning the net total usage such that the coating lasts a definite time until recoat is required. If that clear finish physically fails, and the manufacturer should have some life-test information, then the veneered door fails and this is the costly result.

Clear finishes have to have some ultraviolet absorber in their formulation; otherwise, the ultraviolet component of sunlight quickly destroys the molecular structure of the finish itself, and the underlying wood. It is therefore a basic principle that dry film thickness determines life, all other things equal. Ask your supplier of whatever-finish you might want to put on, what dry film thickness is needed so the finish lasts some length of time, and what the recoat schedule should be.

There is no definition for the film thickness of "a coat", so the answer should be in square feet for a quart (e.g., 20 square feet for a quart of Epifanes Gloss), not some-number-of-coats.

A good clear finish on a door is not cheap, but it's a lot less expensive than replacing the door every few years.

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Old 07-22-2013, 09:42 AM   #3
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Exterior Door Veneer


Kick plates would clean bottom of those doors right up.
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Old 07-22-2013, 10:24 AM   #4
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Exterior Door Veneer


Pro Painter - This is absolutely great info. and education. I truly appreciate the thorough response

Kwikfishron - Excellent idea! Had not thought about that. Could the kick plates be primed & painted with an exterior latex to match the pulls?
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Old 07-22-2013, 10:40 AM   #5
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Quote:
Originally Posted by RunningSparky View Post
Could the kick plates be primed & painted with an exterior latex to match the pulls?
I suppose they could but that wouldn't be my first choice.

You can get them in many different finishes, I'd first would try to find something off the shelf that will work for you and maybe buy new pulls to match if need be.
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Old 07-22-2013, 12:40 PM   #6
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Thanks again...
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Old 07-24-2013, 04:13 AM   #7
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Exterior Door Veneer


Varnish will work good and gives the finishing touch to these exterior door's. You should go for varnish first.

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