OP-TEK® Flex Family
Flexible EVA sheet for inner liners in rigid socket frames
OP-TEK® Flex materials are soft, flexible EVA copolymers that provide outstanding patient comfort when used as an inner liner for rigid socket frames.
OP-TEK® Flex is specially formulated to maintain more consistent walls during forming compared with many other flexible plastics.
OP-TEK® Flex Comfort exhibits excellent seaming characteristics during drape forming and more consistent walls during blister/bubble forming compared with many other EVA copolymer materials.
OP-TEK® Flex BiLam provides added comfort and improves aesthetics for patients wearing carbon socket frames. The inner layer contains a hypoallergenic, FDA compliant additive that reduces friction, and the outer layer helps hide trim lines and window cut-outs of carbon socket frames.
Typical Properties of EVA Copolymer Sheet
PHYSICAL PROPERTIES |
UNITS |
ASTM TEST |
EVA SHEET |
Density |
g/cm3 |
D1505 |
0.952 |
Tensile strength @ yield |
psi |
D638 |
3580 |
Elongation @ break |
% |
D638 |
770 |
Flexural modulus |
psi |
D790 |
2470 |
Impact brittleness temp |
°F |
D746 |
<-121 |
DTUL |
A Scale |
D648 |
79A |
Vicat softening point |
°F |
D1525 |
111 |
Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.
Need more information about this material? Use our interactive plastic properties table