AL2CHEM SPECIALTIES AL PS-387 Silica

Identification & Functionality

Chemical Family

Barium Salts,

Silica

Chemical Name

Barium sulfate,

Silicon Dioxide

CASE Ingredients Functions

Anti-Caking Agent,

Filler

Plastics & Elastomers Functions

Reinforcement

CAS No.

7631-86-9

EC No.

231-545-4

Technologies

CASE Ingredients,

Elastomers

Product Families

CASE Ingredients — Additives

Fillers & Extenders

Elastomers — Elastomer Additives

Fillers & Extenders

Features & Benefits

CASE Ingredients Features

Chemical Resistance,

Excellent Flow,

Good Leveling,

High Impact Resistance

Materials Features

Amorphous

Applications & Uses

Compatible Polymers & Resins

Acrylics,

Silicones

Applications

• Defoaming
• Chemicals (flowability, anticaking)
• A reinforcing filler for HTV / RTV2C / LSR silicone rubber

Properties

Physical Form

Powder,

Solid

Typical Physical Properties

	Value	Units	Test Method / Conditions
Average Particle Size	10	μm	—
BET Specific Surface Area	130	m²/g	—
Density (25°C)	2	g/ml	—
pH Value (5% in water)	max. 9.0	—	—
Silicon Dioxide Content (dry)	min. 99%	%	—

Packaging & Availability

Packaging Type

Bags,

Super Sacks

Packaging

• 900 lb/pallet (36 x 25 lb bags)
• 900 lb/pallet (2 x 450 lb super bags)