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When added on a 2-roll mill, 0.5 to 1% of BLUESIL ADD 904 has a very noticeable effect on the green strength of HCR mixtures. Whilst higher doses can be used (up to 2 %) without having a detrimental effect on the cured compounds’ mechanical properties, this may cause « mill shrinkage » to occur.
Comments: BLUESIL ADD 904 tends to increase the swell, especially on slightly charged mixtures. Furthermore, its use is not recommended in transparent mixtures.
The increase in Mooney Viscosity of MF 135 U and MF 175 U:
For example, the table below gives the change in Mooney Viscosity obtained for MF 135 U and MF 175 U as a function of the BLUESIL ADD 904 dose.

 

​BLUESIL ADD 904 dose (in parts)

0

0.5

​1

​MF 135 U

28

30

35

​MF 175 U

62

68

75

Conditions: ML (1 + 4) at 30 °C on uncatalysed product

 

BLUESIL ADD 904 may be stored at a temperature below 40 °C/ 104 °F for up to 12 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.ELV;Food Contact;GADSL;Heavy Metals;RoHS;WEEE

BLUESIL ADD 904

White powder.

Protection

HCR Additives

ELV;Food Contact;GADSL;Heavy Metals;RoHS;WEEE

BLUESIL ADD 904 is an agent designed to increase the green strength and the viscosity of HCR mixtures to improve their processability. It has a permanent effect.

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