Enviro-Test
Warnock Hersey
CCA Treated Lumber
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Laboratory Results
Enviro-Test
November 2005
Saskatoon, Canada
Seal-It International Inc. was recently asked a question that we could not answer. No one at Seal-It could remember a customer, or distributor, asking this question before. When a Colorado distributor of Seal-It products was asked to help reduce maintenance costs for a wooden treaded, pedestrian suspension bridge; the question of added weight had to be answered. Seal-It contracted the services of Enviro-Test Laboratories, a division of CHEMSPEC ANALYTICAL LIMITED, to determine the weight added when Seal-It Wood Sealant is applied.
Two different sized pieces of “raw” wood (non pressure treated), cut from the same dimensional piece of fir lumber, were weighed. The smaller piece labeled SIW 1 weighed 53.1165 grams; the larger, SIW 2 weighed 699.7 grams before Wood Sealant was applied.
Seal-It Wood Sealant was applied to these pieces of wood following Seal-its instructions. The samples were allowed to cure and dry for two days, after which they were weighed again by Enviro-Test Laboratories.
Wood sample SIW 1 now weighed 53.5502 grams, an increase of only 0.8165%. Sample SIW 2 now weighed 703.7 grams, an increase of 0.5717%. That works out to about 1.5 lbs per ton of wood treated.
Seal-It, its customers and distributors feel this is a small “burden to bare” to get the added “rot” and wear resistance that Seal-It Wood Sealant will add to your wood structures and projects.
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This document is also available in PDF format:
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