Why use neutral-cure silicone adhesives?
What is a “neutral cure silicone adhesive, anyway? A neutral-cure silicone adhesive is a silicone based compound that can adhere to a number of different surfaces. Silicone is a good choice for mounting backpainted glass because it cures at room temperature, and doesn’t require additional mixing. It can be applied in a controlled fashion and provides adhesion in any orientation.
It is flexible and durable, and is highly stable in low-heat and high heat conditions. It also maintains its adhesive properties in high humidity, which makes it ideal for use in places like the kitchen and bathroom.
Neutral-cure silicones don’t release volatile organic compounds (VOC) as they cure, which means they don’t have the unpleasant odor that’s sometimes associated with silicone adhesives and caulks. Because they don’t release VOCs, they’re also environmentally friendly and work well in closed spaces, like homes and offices.
Neutral-silicone cure adhesives are widely available and inexpensive. They offer water-tight and air-tight adhesion, and won’t shrink, crumble or crack when exposed to UV light or variable temperatures and humidity.
Don’t attempt to substitute acrylic adhesives, or acrylic-blend adhesives. Acrylic adhesives are not waterproof – they will deteriorate in water over time. Keep in mind that humidity in the air is water, so acrylic adhesive will perform poorly in high-humidity environments like kitchens and bathrooms.
Acrylic adhesives aren’t flexible after curing, so they will crack, shrink and even freeze at low temperatures! They’ll also harden and discolor when exposed to high heat or UV light. Exposure to low temperatures can cause the acrylic adhesive to fail even faster, and could result in unrepairable damage to your backpainted glass.
GE sells a silicone adhesive branded as GE Silicone II Household Glue, which works well for mounting backpainted glass. The GE Silicone II product line is available at many home improvement stores, hardware stores and general-merchandise retailers.
If you’d like more information about mounting backpainted glass, please check out the rest of our site. If you’d like to purchase Glassprimer™ glass paint, please visit our online store .
Photo Credit: GE.