Thanks to all who have provided their responses which I have posted below. Most people suggested using silicone spray on the transfer pattern or strap to help it transfer – I was trying to avoid this due to toxicity of silicone. There were some other interesting techniques – and I received a call saying that fabric transfer patterns are much more effective at this process and they can be used repeatedly.
I will be trying various processes to see which is best for my purposes! Thanks again to Paul and all the participants in this awesome resource!!
layer from the bottom-
Try spraying both pieces with Silicone
Spray transfer paper and strap with silicone spray and use an iron. (We use a table top clothes press)
Transfer patterns on dacron strap: Lay strap on cardboard, put transfer paper on top of strap, take a heat gun and go over the paper on high heat, keeping heat gun safe distance from paper, go back and forth with gun, take a cloth and rub the pattern and it will transfer unto the dacron strap. You do the same with velcro.
We use sewease silicone spray on them first
I use silicone spray first. That seems to work well before ironing
The technicians at work just iron it on. No separator, no magic potion 😉
we bought and use a t-shirt press (ricoma heat press) that has been very
successful for us. I hope that helps (bought it on amazon.com).
we just iron them on directly with nothing else, this seems to
work quite well for us
Cheryl Lewis BSc(HK), CO(c)
Owner, CK Ortho Inc