SmokeShield® ZB4

Identification & Functionality

Chemical Family

Borates,

Boron-based Compounds

Chemical Name

Zinc borate

Plastics & Elastomers Functions

Flame Retardant,

Smoke Suppressant,

Synergist

Technologies

Elastomers,

Plastics

Product Families

Elastomers — Elastomer Additives

Flame Retardants,

Performance Additives

Plastics — Polymer Additives

Flame Retardants,

Performance Additives

Chemical Structure

Zinc Borate

Features & Benefits

Materials Features

Excellent Char Formation,

Flame Retardant,

Low Smoke Emission

Applications & Uses

Compatible Polymers & Resins

Polyesters,

Polyethylenes (PE),

Polypropylenes (PP),

Polyvinyl Chloride (PVC)

Applications

SmokeShield® ZB4 is an effective smoke suppressant in halogenated polymers, particularly PVC, acting in the condensed phase as a char former. It also acts as a flame retardant synergist and a partial replacement of antimony oxide in many thermoplastic and thermoset applications.

Properties

Color

White

Physical Form

Powder

Appearance

Fine white powder

Typical Physical Properties

	Value	Units	Test Method / Conditions
Zinc Oxide Content	36.5 - 39.0	%	—
Boron Trioxide Content	46.5 - 49.5	%	—
Moisture Content	max. 1.00	%	—
Particle Size D50	max. 5	Microns	—

Safety & Health

Health and Safety

• The use of proper protective equipment is recommended.
• Excess exposure to the product should be avoided.
• Please wash thoroughly after handling.
• Store the product in a cool, dry, wellventilated area, away from incompatible materials.

Packaging & Availability

Packaging Type

Bags

Packaging

Standard package is a 25 kg bag.