backputty

In the context of painting and decorating, particularly in Australia and other Commonwealth countries, the term "backputty" refers to the process of applying putty to the backside of a glass pane before it is installed into a window frame. This is typically done during traditional glazing work.

Definition:

Backputty is a glazing technique where a thin bead of putty is applied into the rebate (the groove or recess in the window frame) before the glass is set in place. This creates a seal between the glass and the frame, helping to:

• Cushion the glass
• Provide a weatherproof seal
• Prevent rattling
• Improve insulation

Common Usage:

• Used in timber window glazing
• Often followed by "front puttying," where putty is applied on the outside to secure and seal the glass

Materials:

• Traditional linseed oil putty
• Modern glazing compounds or sealants (in newer applications)

Example:

"Before setting the glass, make sure to apply a smooth bead of backputty into the rebate to ensure a proper seal."

This technique is especially important in heritage or traditional window restoration projects.