Spray Adhesive: Round 5

Here it is. The Final Challenger. As usual, we started with a heavy spray of Web Bond TA 101, a temporary adhesive designed to work with textiles for temporary stickiness. And we let it sit and get good and tacky overnight. Then we spot treated with Orvus Wa Paste, and set it to soak in water and Orvus Wa solution. We let it soak for about an hour and half before rinsing. The glue itself came up fairly easily. There was some peeling required, but the glue did come up, and rinsed right out.

Orvus wa ALMOST won

Orvus wa ALMOST won

Overall, the Orvus Wa paste did the best job. But, I was forced to come to the conclusion that something in the glue was causing problems. And since I hadn’t ever heard of any problems with this particular product, I did some digging.

Web Bond TA 101 is a solid product. When used as directed, sprayed from a distance of 10” to 12”, there have been no reported problems that I could find. In fact, every review I found was a positive, glowing, where have you been all my life, type review. So I revisited how I’ve been using it. Notice above where I quoted the directions as being hold can 10” to 12” away from item to be sprayed? If you go back over my video sequence, you’ll see I’m holding the can considerably closer to the fabric. Like 2” to 3” from the fabric. A lot of difference 8” can make.

Here’s what I think is causing the discoloration. I don’t think it IS the glue causing the permanent marks on the fabric. I think it’s the propellant the aerosol uses. All aerosol cans use a form of propellant to get whatever is inside (paint, hairspray, glue) out. Generally, this propellant is dispelled in to the air as the contents of the can are released. However, as I’m holding the can so very close to the fabric, the propellant is falling directly on to the fabric. And as propellants are the highly flammable hydrocarbons (hence all the warning signs on aerosol cans to keep away from flame, contents are flammable), those hydrocarbons are the likeliest source of discoloration and damage to the fabric.

I may be revisiting one of the previous stains with dry cleaning fluid (Tetrachloroethylene, aka perchloroethylene or perc), to see if that will remove the propellant stains. Next week I’m doing one last video on the spray glue. If used as directed, will it stain? After that, we’ll move on to new projects. For now, here’s the video.