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Starting at: $2.10

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Packaged Quantity Options

5 pc pack
25 pc pack


Our JNT-GS-4 groove spreader is made out of the same red Celcon plastic as our JNT411B60 and JNT411B90, which are Boeing Approved.

Celcon is a more chemically resistant plastic when working with solvents.

This spreader measures 3” square and 1/16th thickness, with four “tongues” designed to spread sealant into grooves.

Tongue sizes are:

.190 width x .180 depth

.100 width x .200 depth

(2) .120 width x .280 depth that can be “customized” by the customer

See all our Groove Spreaders for various "tongue" sizes: JNT-GS-1, JNT-GS-2, JNT-GS-3, and JNT-GS-5.