Hi Terry, et al,
If I missed anything...let me know, but here are the basics. I am sure with your background, much of this will make more sense to you than me...
Eco Bond (as I understand it) has most (all?) its products based on a
silanization process in which adhesion is achieved by covering a surface through self-assembly with organofunctional alkoxysilane molecules, which in this case the type is
aminosilane. Silanes improve adhesion by chemically bonding to materials, forming a molecular bridge that presents as very strong, resistant to the negative effects of moisture and temperature, with very strong durability characteristics. They seem to offer improved, wetting, mechanical properties, filler dispersion, solvent resistance and weatherability. They also have superior wet and dry applications for adhesion, while aslo be heat and moisture resistant. Silanes are multifaceted with performance and quality as additives, primers, co-monomers within adhesives and sealants based on their molecular structure. The do not rely on mechanical adhesion, yet rather chemical bonding to a substrate which results in a more durable attachment modality.
I have only begun (past 10 years) to employ these products as alternatives to the more "mainstream" industrial adhesives spec'd on jobs. I would not call them "natural" by any means, yet better that what other companies are offering in the way of toxicity.
MSDS for EcoBond
Scholarly articles for amino silane adhesion...
SafeCoat products I am aware of, and have in my list of applicable materials for "chemical sensitive" clients.
Yet...I can not get by the chemicals that are in the product. Many of their line does contain Aminosilane, yet also some other pretty heady inorganic chemicals as well such as poly-ether isomers. This later group is broadly considered low in toxicity.
For me, in most application around natural buildings, I have not had a need to employ this product line as I find more traditional materials just as functional and often less costly.
My challenge with foams (besides toxicity) is they just have become too much of a "quick fix" for putting stuff in cracks and crevices we think we are dealing with them. Back in the 80's I was using 50 gallon barrels of the stuff to do "bat exclusion work" from architecture. Over the years I noted that many of these locations could have be "caulked" with more traditional means (as with oakum) as to often I found that the foam trapped
water and moisture in places that then began to decay. Each year I become more resistant to foams of any kind and find there claims not actually well founded over time...
Hope this helped Terry...
Regards,
j
1
