HP 1055 U is a silicone master-batch, vulcanizing under heat after addition of a vulcanizing agent (chosen according to the transformation procedure).

Details

HEAT CURED SILICONE RUBBER  HP 1055 U

Description:  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, OhmNaN, approx………………………1×1017

Packaging：

 HP 1055 U is delivered in 20 kg carton boxes.

Storage and shelf life：

 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,  no longer guarantees that the product meets the sales specifications.