Silicone adhesion to fabric

[Speedy]

I would love to hear from anyone who has practical experience of adhering a soft RTV silicone to fabric. We are designing a prosthetic device, tubular in shape. Once we have cracked this we are 'home and dry'

Appreciate any help!

 

[WKTaylor]

The "sizing" coating on the fabric [glass???] is all-important. Various sizing chemistries are available that allow dissimilar materials to bond tightly with each-other. I Strongly suggest You discuss this with the "fabric" vendor(s) and the Silicone vendor. Note: What may make for a great sizing for a silicone-RTV matrix MAY have toxcicity implications... etc...

Regards, Wil Taylor

 

[shino]

Besides adhesives, is there any other technique of "bonding" something, say microchip, to fabric(shirt) ??

Like using some kind of bracket or socket?? But most important, it must not be obstrusive to the wearer.

Thanks for any comments

 

[Speedy]

You could use velcro, but the contact area may be a problem, i.e. too small.

Speedy

 

[kuiphoff]

Dow Corning makes a 2 Part Silicone Adhesive designed for fabric. It is used today on Nylon stockings and other apparel garments. The number is 3631. see

http://www.dowcorning.com

for PDF data file.

 

[Glueguy]

The problem with using silicone is the weak bond strength. Do you require high temperature resistance for this device? If you do not, I would suggest switching to a low cost moisture cure urethane that will provide an exceptional bond to the fabric with all the flexibility required. It has incredible strength and a wide bonding range but is only good up to 120C.

John Schrock

http://www.glubie.com

 

[fabricdoc]

I have a urethane/polyester/nylon fabric laminate which we sonic weld at the seams, which forms a channel about 5/16" wide and 1/8" thick. Material is elastic and will be in water now and then also in sunlight. Storage temperature of fabric could reach 125 F at times. I need a UV resistant, low modulus, high elasticity, soft, low VOC, low skin irritation sealant to fill that channel...maybe a base cure urethane? or? Any off the shelf products you might suggest?