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Jamestown Distributors(800) 497-0010
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MAS Cab-O-Sil Epoxy Filler is a fumed colloidal silica additive which thickens mixed epoxy, making it ideal for all types of filleting, filling, surfacing, and bonding. Cab-O-Sil hardens to a high-strength, high-density solid that is tough and durable, making it more difficult to sand and shape compared to other epoxy fillers.
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Which filler would be better to make a putty-like filler for recessed screws, Cab-o-sil or phenolic micro balloon? I am using silicon-bronze screws in white oak for the frames and meranti plywood for the hull.
The cab-o-sil will work but sands a little harder than WEST System 410 Microlight Filler.
JD Tech Team
Ed D: Have ground out the gel coat in areas with cracks, chips and blister to the bottom on my fiberglass boat. 1.) Is this a product to use directly on fiberglass? 2.)If the ground-out areas (typically 1-2" in diameter) aren't filled to their full depth with this product, to become the final top coat - will a layer of gel coat, after sanding, adhere to Cab-O-Sil properly?
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Does this stuff dry clear?
Dries White. Easy to mix and dries faster that the epoxy resin/hardener by itself.
Juan Carlos Torres
I will buy this product again.
Worked the way I needed to for verticals on poured in place rubber. We will definitely be buying more. Quick shipment as well. We are very happy.
This is great stuff!!!
This is great stuff, similar if not the same as West 406, but a TON cheaper... The Â½ gallon tub makes it so much easier to dispense instead of pouring from a small cardboard tube like the 406 comes in. I keep a small beaker in each tub to add to the resin cups...Easy to mix, and very forgiving on the ratio... Mix in consistencies from syrup to peanut butter for your application. I've used it to fill voids ground out in the hull, adhering layup/constructed parts and panels, and making fillets. I've also used a quick shot of spray enamel to give the mix a color without any adverse effects. Easy to smooth out with a gloved finger, mixing stick or spreader. This stuff cures to a rock like hardness, but is not too difficult to sand if you have to. Filling voids is definitely easier if you don't get excess outside the void... Fair with phenolic after this step... Overall... Great stuff!!!