Heavy fiberglass mat

[jasoncooperpcola]

Holy cow! This is alot of mat. I will get pics when i get home. Its two full rolls, one in an unopened box. I think each box is close to 100lbs. Already itching..........

MB not sure on that one. I will need help figuring out what this mat is.

[jasoncooperpcola]

Ok here are a few pics. Does anybody know what the mat is? Its 54" wide and i have two full rolls of it.
Barely fits with the back seat down



Here is the roving



Front side of mat



Back side of mat

[Kracker Jack]

Looks to be a 1.5 oz. Chop strand mat (CSM). The other narrow roll seems to be a 18 oz. Woven roving type 10 or 12 inch tape

[jasoncooperpcola]

Will it work for a bracket, closing the transom, and some floor mods?

[gw204f]

Don't use just the mat for closing your transom and making your bracket. It will take tons of time and resin to get the proper thickness and even then it won't be as strong as if you used 1708 or 1808.

You could use it, but I would also get some wide rolls of roven and alternate layers.

[RidgeRunner]

The CSM looks heavy. At least 1.5oz which is what the old school builders used to use (ie. lay one layer of CSM and then a layer of 24oz Woven roving into that.) CSM wasn't designed to be used by itself, the resin to glass ratio will be too high. Woven roving isn't as good as the non woven 1708 fabric due to the crimp http://www.vectorply.com/ri-101.html But not to worry, the CSM works great as a water proofer and can be used for the floor, hatches, and the like and the roving will be OK for reinforcement. Look at it another way, all V-20's were constructed using CSM and woven roving for the hull and stringers. The liners were done with a chopper gun and reinforced as necessary with roving.

[RidgeRunner]

Originally Posted by gw204f

Don't use just the mat for closing your transom and making your bracket. It will take tons of time and resin to get the proper thickness and even then it won't be as strong as if you used 1708 or 1808.

You could use it, but I would also get some wide rolls of roven and alternate layers.

Yep, Or buy the 17oz. stitched fabric in wide rolls without the CSM and alternate that with the CSM you have, you would essentially have 1724 a little resin rich but still very robust.

[jasoncooperpcola]

Ok, thanks for the info everybody. Anybody need any csm?

So i will still need some 1708 for the bracket. But, with my bracket design it should be more than sufficient WITHOUT glass and resin. The glass and resin is just for a little more strength. I have already had an engineeer look at my drawings and i am already on overkill.

Is the csm any good for making an electronics box, and glassing a couple fishboxes?

Oh before i forget, does anybody need any csm?