golfextremely
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I have just finished my very first boat model.
I intend to build the real one from stitch and glue plywood, the model has been built from 3mm particleboard.
I have used epoxy to glue, the filler was wheat flour. Used the same to fill holes used to stitch.
I have "painted" it with two layers of epoxy. The paintings were two days apart, and the last was two days ago Is Epoxy Waterproof?.
Curing temperature was between 20 and 30 celsius. The coating felt hard, not sticky at all. It did have some minor smell, but I figured it is normal.
There were areas where the first layer did not seem to coat well, because the wood drank it I figure. This is why I have applied the second layer.
I gave it today to the kids to play with in the bath. Warm water, soap and such.
When It came out and dried, some areas looked like they hadn't been coated. Some areas did develop an unevennes because water filling the particles. some white parts (flour filler, remember) had a rough surface, looking like some of the epoxy had washed away.
What could be the cause of all these? I thought that epoxy is absolutely waterproof, and I have to worry about only UV and knocks.
It is a noname epoxy from a Hungarian producer. There comes a booklet with it, which specifically states that it is adequate for filling holes in radiators and such, and for coating boats. I could not find anything about its composition, they do not even use the word "epoxy".
I intend to build the real one from stitch and glue plywood, the model has been built from 3mm particleboard.
I have used epoxy to glue, the filler was wheat flour. Used the same to fill holes used to stitch.
I have "painted" it with two layers of epoxy. The paintings were two days apart, and the last was two days ago Is Epoxy Waterproof?.
Curing temperature was between 20 and 30 celsius. The coating felt hard, not sticky at all. It did have some minor smell, but I figured it is normal.
There were areas where the first layer did not seem to coat well, because the wood drank it I figure. This is why I have applied the second layer.
I gave it today to the kids to play with in the bath. Warm water, soap and such.
When It came out and dried, some areas looked like they hadn't been coated. Some areas did develop an unevennes because water filling the particles. some white parts (flour filler, remember) had a rough surface, looking like some of the epoxy had washed away.
What could be the cause of all these? I thought that epoxy is absolutely waterproof, and I have to worry about only UV and knocks.
It is a noname epoxy from a Hungarian producer. There comes a booklet with it, which specifically states that it is adequate for filling holes in radiators and such, and for coating boats. I could not find anything about its composition, they do not even use the word "epoxy".
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