CYREZ® 963

CYREZ® 963 is a crosslinking agent from the chemical mixtures and blends family, used in plastics and elastomers.

Principal: allnex Crosslinkers

Functions: Adhesion Promoter, Crosslinking Agent, Curing Agent, Hardener

Enhanced TDS

Identification & Functionality

Chemical Family
Function
Crosslinking Agent
Plastics & Elastomers Functions
Product Code
MITM09993
Technologies
Product Families

Features & Benefits

Labeling Claims
Materials Features
Product Benefits
  • No skin irritation
  • No amine or ammonia by-product
  • Better scorch protection than provided by HMT
  • No corrosive effects on steel and brass/bronze coated steel

Applications & Uses

Product Applications
  • Cyrez® 963 finds wide application as adhesion promoter and crosslinker for bonding rubber to organic cord and wire reinforcement materials.
  • Cyrez® 963 (HMMM) offers several advantages over the older hexa methylene tetramine (HEXA or HMT) system.
  • Cyrez® resins are relatively nontoxic and present little hazard of dermatitis.
  • An additional advantage is that they are not corrosive to steel cord, polyester cord or metal molds.
  • This property is important when considering adhesion promoters.
  • Cyrez® resins are much more suitable as methylene donors, as opposed to HMT which produces ammonia.
  • When used in conjunction with Alnovol® PN 760 or resorcinol, Cyrez® resin offers the ultimate in rubber adhesion giving optimum bonding strength.
  • Hexa methoxy methyl melamine (HMMM) as crosslinker for adhesion promoting and reinforcing systems in rubber applications
Product Uses
  • This product can also be used in conjunction with methylene acceptors (Alnovol® PN 760 or Resorcinol) in rubber compounds to increase modulus, tensile, stiffness and hardness.
  • Cyrez® 963 can be used at the following levels for initial evaluations.

Suggested Levels

  • Cyrez® 963 2 - 5 phr
  • Alnovol® PN 760 1.5 - 3 phr or Resorcinol 1,5 - 3 phr or Resorcinol formaldehyde resin 2 - 4 phr

Properties

Physical Form

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000001
Principal

Storage & Handling

Storage Conditions

At temperatures up to 35 °C storage stability packed in original containers amounts to at least 365 days.

Other

Appearance
Clear liquid
Appearance (SDS)
Liquid
Color (SDS)
Colorless
Insoluble in (SDS)
Water
Item Number
Odor (SDS)
Formaldehyde
Other Hazards
Not applicable
Protect from Freezing
Yes
Temperature Control
Yes
USA/DOT UN Number
Not Applicable
Application Information
ValueUnitsTest Method / Conditions
Dosage (Use Level)5.0-15.0-
Material Composition
ValueUnitsTest Method / Conditions
Non-Volatile Contentmin. 98.0 %%
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 70.0 HazenHazen
Physical Properties
ValueUnitsTest Method / Conditions
Density1.192-1.202 g/cm³g/cm³At 20°C
Storage Temperature41.0-86.0 °F°F
Viscosity2600.0-5000.0-at 23°C
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)325.0 °C°C
Density (SDS)1.1-1.3 g/cm³g/cm³
Flash Point (SDS)min. 93.0 °C°CPensky-Martens Closed Cup (PMCC)
Melting Point (SDS)3450.0 °F°Fafter loss of water of hydration at elevated temperatures
Solubility In Water (SDS)0.0-11.0 %%
Vapor Pressure (SDS)approx. 18.5-
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life365.0-