Changing the Structure of Glass

While many customers are familiar with the epoxy HXTAL and how it works to bond, laminate, repair, and replace glass you may not be as familiar with an often used companion to HXTAL, A-1100 Amino Silane.

“What is A-1100 Amino Silane?,” you may ask.

There are many different varieties of Amino Silanes on the market and they are all listed under adhesion promotors. They help various adhesives to bond to particular substrates.

The A-1100 Amino Silane is formulated to work with epoxies like HXTAL to help them bond more securely to glass substrates.

It does this by chemically altering the structure of the glass at the contact point of the Amino Silane and the glass. This allows the chemical structure of the HXTAL epoxy to bond more securely to the silica in the glass forming a more permanent bond.

The A-1100 Amino Silane that we sell is a mixture of 1% Amino Silane and a Reagent grade 99% pure Isopropyl Alcohol. When applied to a glass surface, the Isopropyl Alcohol evaporates off and leaves a thin layer of the Amino Silane on the glass.

Many customers refer to A-1100 as a cleaning agent, but this is not really correct. We highly recommend cleaning your glass well before applying the A-1100. While the Isopropyl Alcohol may clean some of the glass, it is not really a cleaning agent but an adhesion promotor so it should be applied after your glass has been cleaned with something like Whiting.

Once the A-1100 is applied to the glass surface, you can either leave it on the glass and proceed with bonding your pieces with HXTAL or you can wipe the glass clean again before bonding. Once the A-1100 has been on the glass it will permanently change the checmical structure of the surface of the glass so it doesn’t have to remain on the glass. It will not harm your joint visibility of the joint to let the A-1100 remain on the glass surface before bonding though.

We highly recommend using A-1100 for any bonding that will have a large laminated area or joint or any piece that will be under weight or stress at the joint line.