Chemical Foaming Agents for Rubber
In the production of foamed rubber parts an optimum dispersion of the chemical foaming
agent in the polymer matrix is even more important than in plastics processing. Therefore
foaming agent powders coated with dispersing agents or foaming agents predispersed in
EPDM are preferred.
Upon request all our foaming agents can be supplied in preweighed sachets.
Our Technical Service Department will be glad to help you choose the best product from our
range for your application. Please use our contact form for your enquiries.
Some of our foaming agents for use in rubber are listed below:
Foaming Agent Pastes
and oil-treated Powders |
decomposition temperature |
Remarks |
| TRACEL BSH 75 K1P |
ca. 100°C |
coated with dispersing agent |
| TRACEL TSH 75 K1P |
ca. 110°C |
coated with dispersing agent |
| TRACEL K 5/95 |
ca. 130°C |
oil-treated, dust-free powder |
| TRACEL K 3/95 |
ca. 140°C |
oil-treated, dust-free powder |
| TRACEL SR 165/75 K |
ca. 165°C |
coated with dispersing agent |
| TRACEL OBSH 75 KP |
ca. 160°C |
coated with dispersing agent |
| TRACEL OBSH 80 P-R |
ca. 160°C |
coated with dispersing agent, for smooth surfaces |
| TRACEL ADC 5/90 P |
ca. 200°C |
coated with dispersing agent |
| TRACEL ADC 2/75 PASTE |
ca. 200°C |
coated with dispersing agent |
| |
| EPDM-bound Foaming Agents |
| TRACEL OBSH 75 EPR |
ca. 160°C |
predispersed in EPDM |
| TRACEL ADC 3/75 EPR-1 |
ca. 200°C |
predispersed in EPDM |
| |
| Basic Foaming Agents |
| UNICELL BSH |
ca. 100°C |
benzenesulfonylhydrazide, exothermic |
| UNICELL H |
ca. 110°C |
p-toluenesulfonylhydrazide, exothermic |
| TRACEL OBSH 160 NER |
ca. 160°C |
phlegmatised OBSH, exothermic |
| UNICELL GP 5 |
ca. 205°C |
N,N´-dinitrosopentamethylentetramin (DNPT, DNO), exothermic |
| UNICELL D 200 A |
ca. 210°C |
azodicarbonamide, exothermic |
| UNICELL D 800 |
ca. 210°C |
azodicarbonamide, exothermic |
| |
| Activators |
| UNICELL BM |
|
zinc dibenzenesulfinate (ZDBS) |
| UNICELL TM |
|
zinc ditoluenesulfinate (ZDTS) |
| UNIPASTE N3S |
|
modified urea |
|
