Case 27 - Single Component - Silicone Backbedding
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Type of User:
Window manufacturer
Application:
A bead of RTV silicone is applied to the inside of a window frame before the glass is put into place. This bead of material is known as “backbedding”. The glass or “lite” and frame together become a window.
Material Used:
One-component silicone from manufacturers such as Dow, General Electric, Pecora, Tremco and others.
Equipment/Solution:
23:1, 34:1, and 55:1 5-gallon or 55-gallon pumps are commonly used.
Since silicones are moisture sensitive, Teflon or Moisture-Lok hoses are required.
Manual guns are used for hand applications.
Automatic snuff-back guns are used if the operation is done on an XY table.
The PrecisionFlo LT may be used if a very precise bead is required.
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