Bonding Corian For Countertops

72chevy4x4

if you were to use 1/4" Corian for a countertop application (or 1/2" I would guess), is it bonded to the underlayment-like a piece of 3/4" plywood? I understand the edging will be difficult, but doable. Found some Corian on the cheap and was thinking of a countertop.

another question, when using the Dupont bowl kits for Corian, guessing that's with 1/2" Corian, when manufactured offsite, is it brought in and bonded to the underlayment for strength? I'm wondering about the bowl area, if it is 'strong'.

Mike Finley

1/2 inch bonded to plywood, laminated edge of 3 pieces to create a 1 1/2 edge. Router the edge anyway you want to make it nice and purty. Sink is bonded off site and cleaned up so it looks purty where it bonds to the cut out sink hole. (forms what I would call an integrated sink)

Controversy exists with these sinks in regard to stress cracks forming around drain hole due to shock caused by hot and cold water. However most customer can't resist the temptation of going with a integrated sink to get that cool invisible connection instead of a safer porcelain under mount.

72chevy4x4

thanks Mike. Concerning the stress cracks-do you suppose a double layer of Corian in that area (if possible) would help?

Mike Finley

The sinks are factory made and there are no flat surfaces on them so there is no bonding to be done. The cracks are around the drain, perhaps you thought I meant on the counter top?

genecarp

not sure, but is he talking about the connection between the counter and the sink?

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72chevy4x4

is the crack pictured located where the vent tube is formed (if it's formed into the Corian sinks)? I have not seen that type of crack before and had pictured something different.

go dart

thermal shock. acrylic based products warn against useing hot water only. things to consider
why would you bond 1/2" matl to a substrate? build up your edges and glue areas.
your gonna need a special gun for your seaming and bonding matl. i guess you could bbuy a tube, cut it apart, and mix manually but it dries fast and the cartridges run 50.00 ea
use a swanstone # 3015 dbl bowl sink if you want an integtal sink. 1/2 the cost of acrylic and no thermal shock. ps you'll need at least 2 bits for this, 1/2" shank and a heavy router