Technical data sheet

Release W 40 HS4


RELEASE W 40 HS4 is a water-based release agent based on synthetic SBR polymers compouded with additives that impart a high water repellency.  


RELEASE W 40 HS4 has been designed as a release agent for porous substrates, like Kraft paper, masking papers, non wovens, fabrics, which are supposed to be in contact with hot-melt, natural rubber and acrylic adhesives.

Technical Specifications

Method of analysisMUStandard
1Total Solids% 40±1
3Brookfield Viscosity 25°CmPa.s 500 - 1,000
8pHpH 6.5 - 8.5


Quantity to apply depends on substrate porosity: from 3 to 5 g dry/sqm (on coated paper we suggest 3 g dry/sqm). Methods: Meyer bar, Reverse Roll, Roto gravure, Air knife.
It can be either thickened (acrylic thickeners) or diluted.
It is advised to heat the product for a few seconds at 150°C in order to achieve the highest properties of releasing and hydrophobicity. However results are good (but inferior) also at lower temperatures. Ageing properties are excellent.


Despite a good freeze-thaw stability, keep material preferably at temperatures between +5°C and +40°C, avoid direct sunlight.
When stored for over one month it is necessary to stir the product for 10 - 15 minutes before use. 

Use within 9 months from production date (unopened and in the original packaging).

Mod. DT3002ECreation date: 7/8/2010Revision: 5Revision date: 21 Feb 2023
Above information is reliable, but does not constitute warranty.

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