Wetting Out Cloth

[mspring]

Will you guys explain how you are wetting out cloth using poly resin ?

I read one thread where someone was using a "wetout table". But wetting out a piece of cloth to put on a 16 foot stringer will be kind of hard. I was thinking of painting the resin on the stringer with a brush, laying the cloth on smashing and rolling the cloth in, and then brushing more resin on the cloth.

Will that "wet out" the cloth good enough?

 

[ondarvr]

Re: Wetting Out Cloth

Apply resin to the area first, then lay the cloth, mat, roving, (pick your type of glass) down and add enough resin to wet it out completely, no more, no less. Depending on the size and shape, you can use a brush, fuzzy roller, squeegee, fingers, it's just kind of whatever works. On large areas I just pour it on and move it around with a fuzzy roller or squeegee. If you work mat around too much while applying the resin it will fall apart and make a mess. A wet out table does work well at times, you can wet out all of the layers needed for the layup on the table at one time, roll most of the air out, then put it in place and roll it a little more.

Remember mat needs to be used as a first layer and between each layer of roving or cloth, and for it's cost, cloth adds little strength. For stringers roving is a much better option.

 

[oops!]

Re: Wetting Out Cloth

everything he said...... read that one twice.

a wet out table works good when theres two people glassing...and when the peices are smaller....around 25 ins

but not for larger peices....yer doin stringers ....thoes are long pieces

do what onda rivr said....you wont go wrong......

and remember.... safety first.... well ventalated area... full breathing mask... not just a filter over your mouth.....

make sure the glass is saturated...."no more no less" as rivr said.
(no white spots)...then work out the air bubbles....

i found out it is better to remove a bad lay up when its wet and throw it away then wait tll it drys and start grinding......

go for it bud,,
oops

 

[Robj]

Re: Wetting Out Cloth

Use on of the grooved rollers, they work great for removing air bubbles.

Have a great day,

Rob.

 

[drewpster]

Re: Wetting Out Cloth

I have watched builders use a chopper gun to spray down a coat then lay mat on top of that. Would it be a good idea to mix up a volume of resin with copped strand, spred or roll it on, then lay mat on top of that as a first layer? Or is that overkill?

I have some big stringers to do myself. (6"x9')

 

[watermellonI]

Re: Wetting Out Cloth

I wet the surface first with a roller for large areas placed the glass then rolled on more resin then used a brush to help saturate the glass and work out the bubbles. You have move kinda quick if you re doin a large area.

 

[ondarvr]

Re: Wetting Out Cloth

What comes out of a chopper gun is basically the same as mat, so it was most likely roving they were laying down on the chop. there's no need to add any chopped strands to the mix, it won't do any thing but complicate the procedure.

 

[Solittle]

Re: Wetting Out Cloth

Do the stringer in sections of whatever length you feel comfortable with overlapping each section of course. I might do three sections in a 16' length. Make sure that you have done all the cutting of the glass before you mix the resin. When you start you need to work very quickly (at least we have to in south Florida). Try a test piece on some scrap wood.

 

[SgtMaj]

Re: Wetting Out Cloth

Will you guys explain how you are wetting out cloth using poly resin ?

I read one thread where someone was using a "wetout table". But wetting out a piece of cloth to put on a 16 foot stringer will be kind of hard. I was thinking of painting the resin on the stringer with a brush, laying the cloth on smashing and rolling the cloth in, and then brushing more resin on the cloth.

Will that "wet out" the cloth good enough?

I do mine exactly the way you're describing and it works pretty well. Sometimes you have to work an area over pretty well though just to get an air bubble out, so the grooved roller might be worth looking into. But what you described will work just fine, too.