Endex 4233™

Identification & Functionality

Plastics & Elastomers Functions

Foaming Agent,

Processing Aid

Active Ingredients

Acid and base components

Characteristics

Endothermic decomposition

Technologies

Elastomers,

Plastics

Product Families

Elastomers — Elastomer Additives

Processing Aids

Plastics — Polymer Additives

Processing Aids

Features & Benefits

Materials Features

Cost Effective,

Fast Extrusion Speed,

High Efficiency,

Shorter Cycle Time

Product Highlights

Endex 4233™ endothermic chemical foaming agent utilizes innovative technology to produce superior quality foamed products. It generates very fine, closed-cell foams, which result in moldings and extrusions of high quality.

Endex 4233™ Processing Aid can be used in injection molding for cycle time reduction, improved polymer flow, reduced processing temperatures, improved weld line strength, and to eliminate molded-in stresses which cause warp and sinks.

Advantages

Endex 4223™ has many advantages for the plastics processor, including:

• Fine cell structure
• Shorter cycle times
• Faster extrusion
• Thick, smooth skins in SFM
• Fast degassing
• Fast painting and decorating
• No plate-out on molds
• Beryllium-copper compatible
• G.R.A.S. or FDA sanctioned ingredients

Applications & Uses

Markets

Industrial

Applications

Industrial — Other Industrial Applications

Plastics & Elastomers Processing Methods

Blow Molding,

Extrusion,

Film Extrusion,

Injection Molding,

Structural Foam Molding

Intended Uses

Endex 4223™ is intended for use in a wide variety of processes, including:

• Injection molding for cycle time reduction, sink marks, warp reduction, shrink control.
• Structural Foam molding (SFM). Gas Counter-pressure foam molding.
• Nitrogen SFM for finer cell structures and extra weight reduction.
• Gas Assist molding for extra weight reduction and sink elimination.
• Extrusion of Sheet, Film, and Profiles.
• Blow Molding, Rotational Molding.

Use level

Endex 4223™ use levels will vary with the application, but the following guidelines can be used as a starting point. Optimization for each application is recommended:

• Structural Foam Molding Endex 4221™ 1 - 2%
• Sink Mark Elimination 0.1 %
• Nitrogen Foam Molding  0.3 %
• Extrusion and Blow Molding  0.3 %

Properties

Physical Form

Pellets,

Solid

Typical Properties

	Value	Units	Test Method / Conditions
Gas Volume	65 - 70	cc/gram CO2	—
Process Temperatures	171 - 315 (340 - 600)	°C (°F)	—

Regulatory & Compliance

Certifications & Compliance

Generally Recognized As Safe (GRAS)

Physiology

All ingredients are Generally Recognized as Safe (GRAS) by the FDA.

Packaging & Availability

Packaging Type

Boxes,

Cartons

Standard Packaging

25 KG cartons, or 500 KG boxes, 1000 LB boxes (USA only).