Glassdoc,

While I agree with you, I also disagree with you. True, just like tires there are only a few that produce all brands. I also agree that we should evaluate as many resins as possible. I also agree that to fully understand the how and why as well as theory behind the resins and tests is not needed for our end result purposes.

Where I do disagree though is that the tech. spec. sheets are useless. As I posted earlier this would give the technician a <span style="text-decoration:underline">base line</span> to start from. This won't give you real world results but it will supply you with resin characteristics. Each supplier should have one for their proprietary formulations. Some of the information that I think is important to us as technicians that can be acquired from the tech specs. are: Viscosity, Refractive Index, Adhesive Sheer Strength, Tensile Strength, Temp. Specifications, Elasticity, Elongation, Linear Shrinkage and Shore Hardness.

This type information is geared more towards the functionality of the resin which is what I and I think we all should be concerned with foremost. This will define how well the resin will preform which is directly related to safety.

I would like to believe that the top resin suppliers are just as concerned with the products that they are paying to have produced as well as putting there reputation on line by ultimately selling them to you and I are having periodic quality assurance tests done by the manufacturer to ensure product quality. The manufacturers should also be adhering to the GMP (Good Manufacturing Procedures). Sure any company could have bogus information to hand you and I but I think what they would be supplying to you and I is the specs from the manufacturer that were done on their specific formulation. Fraudulent information would come with some hefty legalities.

If you are primarily concerned with appearance characteristics foremost, then granted this info is not the same as field testing but it is a baseline to go on for the new to the business or anyone who does not want to wait for few months to see if the resin yellows or repairs aren't holding or what ever criteria they have might be.

I honestly feel that between the top suppliers there will not be that big of a difference in appearance overall but there might be in how well the resin does its primary job, BONDING.



Pay it foward,

Brian
www.safeglasstechnologies.com

info@safeglasstechnologies.com</p>