Bill,
We have lined plywood boxes with either EPDM roofing membrane or vinyl pond liner, depending on local availability, and both have worked well. Being a flexible sheet, it is folded up the sides and stapled above the containment zone.
Allan

Allan Sindelar
al...@sindelarsolar.com
NABCEP Certified PV Installation Professional
NABCEP Certified Technical Sales Professional
New Mexico EE98J Journeyman Electrician
Founder (Retired), Positive Energy, Inc.
505 780-2738 cell

 

On 3/30/2015 10:03 AM, frenergy wrote:
Fellow Wrenches,

       I just called Tap Plastics hoping they would solve my problem of battery acid containment within a plywood battery box.  I was surprised by their response that the acrylic was not impervious to acid and polyethylene would not work because sealants nor caulking adhere to it properly.  They did not have anything that would work.

       I've used those individual battery boxes from an auto parts store (~$12/each) but they take up more space than just the batteries.  Has anyone ever used ice dam underpayment, like Grace? Better idea?

Thanks for any advice,

Bill
Feather River Solar Electric

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