Energy savings plus mechanical reinforcement and rheology control

1K Semi-Conductive Natural Rubber Cable Sealant by DPR Industries

Adhesives Formulation

Applicable Type

Sealants

Applicable Base Polymer

Natural rubbers (NR)

Applicable Industrial Sectors

Pipes, wires & cables

Applicable Base Polymer Properties

DPR 400 is a liquid natural rubber product for use in rubber compounding and tire manufacturing. It is particularly useful as a general rubber compounding ingredient because it is natural rubber-based and can be reacted over the entire cure spectrum of natural rubber. Liquid natural rubber has an affinity to wet large amounts of dry ingredients. Natural rubber has good resistance to water and to mold, but poor resistance to oil, solvents, and low temperatures.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Natural rubber, (DPR 400, DPR Industries)

xxxxx

Conductive carbon pigment (Conductex 975, Columbian Chemicals Co.)

xxxx

Coal tar derivative (Bardol, Barret Oil Company)

xxxx

Zinc oxide

xxx

Tetramethylthiuram disulfide (Methyl Tuads, R.T. Vanderbilt Co.)

xxxx

Methyl zimate

xxx

Thiazole accelerator (Captax, R.T. Vanderbilt Co.)

xxx

Sulfur

xxxx

Rubber processing oil

xxx

Typical Properties

Properties

Viscosit

xxxxxxxxxxxxxxxxxxx

Cure time and temperature

xxxxxxxxxxxxxxxxx

Tensile strength, psi

xxx

Modulus @ 100% elongation, psi

Elongation, %

xxx

Hardness, Shore A

Surface conductivity, ohms

xxxx

Processing

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Resulting Properties

A major application area for 1K Semi-Conductive Natural Rubber Cable Sealant formulation is sealing electric cables and other areas. It is used in applications where compound adhesion is critical and large amounts of plasticizer must be avoided. Liquid natural rubber can be used because of its reactivity. Once cured, it will not migrate over time as typical oils do.

A formulation by DPR Industries.

1K Semi-Conductive Natural Rubber Cable Sealant by DPR Industries

Applicable Base Polymer Properties

Typical Formulation Ingredients

Typical Properties

Processing

Resulting Properties

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