HEAT CURED SILICONE RUBBER
IOTA HP 1055 U
Description: IOTA HP 1055 U is a silicone master-batch, vulcanizing under heat after addition of a
vulcanizing agent (chosen according to the transformation procedure).
Applications：For
moulded and extruded articles with good mechanical properties.
Special properties：
No
refreshening
Short
post-cure
Easy
processing
High
mechanical properties; good combination between tear strength and compression set.
Good
dielectric properties
Characteristics：
Density
at 25℃, g/cm3,
approx………………………………… 1.16
Aspect…………………………………………………………
Translucent
Properties after working：
After
addition of 1.0% 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane (at 45%), and
vulcanization for 10 minutes at 170oC and 4 hours at 200oC of post cure
1.
Mechanical properties
Shore
A hardness, approx……………………………………58
Tensile
strength, MPa, approx………………………………9
Elongation
at break, %, approx………………………………600
Tear
strength, kN/m, approx…………………………………43
Compression
set (22h/177℃/25%),
%, approx……………35
Rebound
resilience, %, approx………………………………35
Linear
shrinkage, %, approx…………………………………3.5
2.
Electrical properties
Dielectric
strength (2 mm thick), kV/mm, approx…………14
Dielectric
constant at 1 MHz, approx………………………2.8
Dissipation
factor at 1 MHz, approx…………………………3×10-3
Volume
resistivity, Ohm.cm, approx………………………1×1017
Packaging：
IOTA HP 1055 U is delivered in 20 kg carton boxes.
Storage and shelf life：
IOTA HP 1055 U may be stored in its original unopened packaging at a temperature below 40℃for up to 12 months from the
date of manufacture marked clearly on the packaging.
Past
this date, IOTA no longer guarantees
that the product meets the sales specifications.
