Window Channel--Three Years Later (Tuggers Vol. 55)

By Dave Howell, NELLIE D. #63 

Tape holds corners securely while S-40 sets

I replaced NELLIE D.'s crumbling felt window channel with a modified Trim-Lok 1375B7X3/8 molding using the procedure explained in the Wiki's FAQs (lnvt.org/tug-faq#windowchannel). In three years of use some problems have cropped up: the molding sometimes sagged on top of the window; a sticky window could grab the molding and pull it along; and finally, over time the molding settled into its stainless U-channel and where once the Trim-Loks' bitter ends pressed together tightly, a gap appeared. The good news is that all these shortfalls can be addressed by 'gluing' the Trim-Lok into place.

Relax the corners for a better fit

First, I recommend that both the movable and fixed panes of glass, and their stainless retainers, be completely removed from the window. Next, put a bead of polyurethane caulk (like 5200 or Loctite S40) inside the stainless U-channel. Next, put the Trim-Lok into the stainless U-channel holding it tightly in place, especially in the corners, using masking tape. Finally, when the polyurethane has dried, reinstall the glass and its retainers.

 The windows are once again a joy to use and hopefully, in another three years, I'll be able to report they have been trouble free.