SILCOLEASE MRA 385 is used as an additive with a SILCOLEASE solventless release system between 1 and 6%, at intermediate to high coating speeds and between 7 and 13% at the highest coating speeds.

SILCOLEASE MRA 385 is used as an additive in the bath preparation of solventless SILCOLEASE systems.

SILCOLEASE MRA 385 must be used in association with a base polymer, for example SILCOLEASE 11367, a crosslinker, for example SILCOLEASE CROSSLINKER XL 321, a catalyst, for example SILCOLEASE CATALYST 11091M and when required a Release Control Additive, for example SILCOLEASE RCA 396.

Recommended formulation, typical:

Typically recommended addition levels based on parts of MRA385 per 100 parts Silcolease polymer.

At speeds of:

  • 500 – 1200 m/min use 3 - 6 parts MRA 385
  • 1300 – 1600 m/min use 7 - 13 parts MRA 385
Avoid discharge into drains, water courses or onto the ground. Store in a cool, dry place with adequate ventilation. Keep away from incompatible materials, open flames, and high temperatures. Avoid contact with oxidizing agents. Suitable containers: Steel drums coated with epoxy-resin.Please consult the Safety Data Sheet of this product.Heavy Metals


SILCOLEASE MRA 385 is a 2nd generation mist reducing additive used with solventless SILCOLEASE polyaddition release systems processed at high running speeds.  Based on branched silicone polymer technology, SILCOLEASE MRA 385 is effective at much lower doses than 1st generation mist reducing products at line speeds up to 1600 m/min.  Typical addition levels from 2% to 6% are sufficient for most applications up to about 1000 m/min.




Heavy Metals

  • Effective mist reduction at reduced dose levels

  • Easily incorporated into solventless silicone polymer systems

  • No effect on cure or other release coating properties

  • Self-adhesive labels

  • Other self-adhesive protectors (envelopes, personal care)

  • Self-adhesive tapes

Asia Pacific;Europe Middle East Africa;Central and South America;North America

For information about Storage and Shelf Life for this product, please download the Technical Data Sheet.




Active material content100Monocomp%
Specific Gravity0.90Monocomp
Flash point>190Monocomp°C
Volatile Content< 1MonocompISO 3251%
Viscosity1800MonocompASTM D 2196mPa.s
Turbidity< 30MonocompDIN 53479NTU
AppearanceHazy viscous liquidMonocomp
ColorColourless to slightly yellowMonocomp











































All rights reserved © Elkem Silicones 2018