Chem­i­cal-resistant sealant locks in the leaks

DEMM Engineering & Manufacturing - - PRODUCT WATCH -

The main­te­nance depart­ment of a ma­jor pa­per man­u­fac­turer was hav­ing dif­fi­culty find­ing a prod­uct to seal sev­eral leaks in a lam­i­na­tion glue reser­voir.

In the man­u­fac­tur­ing process, the pa­per is pulled through a bath of lam­i­nat­ing glue. This reser­voir was leak­ing at a rate of 1.5 totes of glue per month, adding up to an an­nual loss more than $20,000.

The main­te­nance staff had used var­i­ous RTV sil­i­cones and other gas­ket­ing sealants in an at­tempt to pre­vent the leaks from within the tank. Th­ese sil­i­cones and sealants would soften or be­come brit­tle when they came in con­tact with the lam­i­nat­ing glue and the leaks would reap­pear shortly after ap­pli­ca­tion.

The man­u­fac­turer con­tracted Loc­tite to pro­vide main­te­nance work­shop train­ing to their staff. Staff learned that var­i­ous gas­ket­ing ma­te­ri­als can be in­com­pat­i­ble with some f lu­ids, and that re­pair the leaks in the glue reser­voir, they needed a prod­uct with a high de­gree of chem­i­cal re­sis­tance, which would ad­here to almost any sur­face and cure if damp or wet.

Loc­tite Fix­mas­ter Metal Magic Steel was rec­om­mended by the Loc­tite staff. Fix­mas­ter Metal Magic Steel is an easy-to-use epoxy putty that cures to a metal-like fin­ish, cures un­der wa­ter, and ad­heres to most damp sur­faces. It is pack­aged in a two-part roll. The de­sired amount is clipped from the roll and is kneaded un­til a uni­form colour is ob­tained. The prod­uct is then ready to be formed into the leak­ing crack or holes, is work­able for three min­utes, and sets in just ten min­utes.

The main­te­nance staff of the pa­per man­u­fac­turer used it to re­pair the leaks in the glue reser­voir. The prod­uct proved to be chem­i­cal resistant by not break­ing down in the pres­ence of the glue. It ad­hered well to both the metal and the plas­tic com­po­nents of the reser­voir, and sealed the leaks com­pletely. Stop­ping the loss of glue due to leak­age.

www.demm.co.nz/reader-en­quiry#140911

Loc­tite Fix­mas­ter Metal Magic Steel used to seal a glue reser­voir.

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