noun
paste brush; pasting brush
A brush used for applying paste or glue, such as in crafts, papering, or mounting.
障子を貼る前に、糊刷毛で枠に糊を塗ります。
Before pasting the shoji paper, apply glue to the frame with a paste brush.
この糊刷毛は、でんぷん糊を塗るのにちょうどいい大きさだ。
This paste brush is just the right size for applying starch paste.
Compound of 糊 (nori, 'paste') and 刷毛 (hake, 'brush'). The reading のりばけ is a straightforward combination.