Water-based Release Coatings

Water-based Release Coatings

Mayzo’s water-based release coatings represent a “greener” alternative to traditional solvent-based products. Use of water-based release coatings can help to reduce VOC emissions as well as reduce concerns of worker safety associated with the use HAP solvents.

Benefits of water-based release coating include:

  • Based on acrylate, polyvinyl acetate / acrylate, fluoro-acrylate, fluoro-phosphate ester, modified polyurethane, polyester / acrylic and modified starch chemistries
  • Recyclable and repulpable
  • Wide release levels
  • Release effects remain stable after oven aging
  • FDA approved for indirect food contact (see product list)
  • Printable (see product list)
  • Uses include masking tape, paper, and “Sticky Note” type applications

Escoat® P-20 Dispersion

Introduction:

Escoat® P-20 Dispersion is a water-based non-silicone product especially produced for use in pressure sensitive labels, film and tapes applications where a non-solvent is needed.  The high degree of purity, quality and tight melting point range of the Escoat P-20 offers superior properties and performance to critical users.  Escoat P-20 Dispersion can be used on OPP or PET films with adhesives based on natural rubber, SBR, SIS, acrylic, etc. primarily for obtaining release in self wound tapes where tight peel is mandatory.  Escoat P-20 Dispersion is expected to give a peel strength 2-3 times the level expected from most silicone release agents.

Material Description:            Carbamate Release Coat Dispersion

Chemical Name:                    Polyvinyl Octadecyl Carbamate Dispersion

Empirical Formula:               [CH2-CH(OCONHC18H37)-]n  in H20

CAS #:                                    36671-85-9 in 7732-18-5

Molecular Weight:                [339]n   or > 60,000 ; water=18

Physical Properties:             Appearance:                                       liquid

Melting Range (Escoat P-20):            97 - 107°C

% solids (Escoat P-20):                      19-22

Clarity, ADSAM082,

Heated to 70 °C (Escoat P-20):          Clear (10 g/100ml of toluene)

Color, ADSAM121,

Gardner (Escoat P-20):                      <5

Solubility in Water:                              Disperses in water

Viscosity (mPa.s/25°C):                     5-12

pH (10 times diluted):                          ~9

 

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Escoat RA 130W

Introduction:

Escoat RA-130W Release Coat is a non-silicone, acrylic water based emulsion which provides superior release characteristics when applied to polyethylene and polyester films.   Escoat RA-130W has a strong wetting and adhesion performance with PET and corona treated PE substrates.  Escoat RA-130W is useful for duct tape and other tapes where an aqueous coating is needed.

Material Description:            Acrylic emulsion Release Coat

Chemical Name:                    Acrylate

Empirical Formula:               Proprietary Blend

CAS #:                                    Mixture

Molecular Weight:                Proprietary

Physical Properties:             Appearance:                           Off white, milky emulsion

Ionic Characteristic:                Nonionic

Solids Content:                        51-52%

Solvent:                                   47+% Water

pH:                                         4.5 +/- 1

Specific Gravity:                     ~1.1

Viscosity:                                 <100cps

Flash point:                              >94 °C (>200 °F) [Closed cup]

 

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Please view our  Escoat RA 130W PDF

Escoat RA 150W

Introduction:

Escoat RA-150W Release Coat is a high quality release coating developed for pressure sensitive adhesive tapes to provide controlled release.  It adheres well to polyester and corona or flame treated polyolefins.  It provides excellent release, even in high humidity environments, with rubber, solvent acrylic and hot-melt adhesives.  Escoat RA-150W Release Coat may also be used as a water based over print varnish having good gloss, release power and a low coefficient of friction.

Material Description:            Aqueous Polyurethane Release Coat

Chemical Name:                    Aliphatic modified polyurethane aqueous dispersion

Empirical Formula:               [-OCO(CH2)2OCONH(CH2)6NH-]n

Molecular Weight:                [230.3]n

Physical Properties:             Appearance:                           Clear to slightly hazy liquid

Ionic Characteristic:                Anionic

Total Solids in %:                    25 ± 2

pH:                                          8.3 +/- 1.0

Water Solubility:                      Completely soluble

Specific Gravity (H20=1):       1.1

Brookfield Viscosity

(#1RV @100rpm):                  20-60 cps

Flash point:                             >100 °C (>212 °F) [Closed cup]

 

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Please view our Escoat RA 150W PDF

Escoat WFX

Introduction:

Escoat WFX Release Coat is a non-silicone, acrylic water based emulsion, which provides consistent release characteristics for tape and label products.   Escoat WFX  has a consistent wetting and adhesion performance with PET and corona treated PE substrates.  Escoat WFX can be used on masking tape and other tapes where an aqueous coating is needed.

Material Description:            Acrylic emulsion polymer Release Coat

Chemical Name:                    Acrylate

Empirical Formula:               Proprietary Blend

CAS #:                                    Mixture

Molecular Weight:                Proprietary

Physical Properties:             Appearance:                           Liquid

Ionic Characteristic:                Nonionic

Solids Content:                        35-36%

Solvent:                                   63+% Water

pH:                                         8.0 +/- 1

Specific Gravity:                     ~1.1

Viscosity:                                 >200cps

Flash point:                              A/A (aqueous product)

 

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Escoat WPX

Introduction:

Escoat WPX Release Coat is a non-silicone, carbohydrate polymer emulsion which provides a moderate release performance that is writeable and inkjet printable.   Escoat WPX coatings give a consistent release performance for various tape and label products, specifically bond paper, postal readdress labels, “Post-It” type packs for give away, coupons, prescription pads, and such.  The unique balance of release performance and inkjet receptivity is unmatched in release coat technology.  Variations of Escoat WPX are available for lower peel performance in the new “super sticky” type label pads.

Material Description:            A polysaccharide solution of a modified starch

Chemical Name:                    Modified starch

Empirical Formula:               Proprietary Blend

CAS #:                                    Mixture

Molecular Weight:                Proprietary

Physical Properties:             Appearance:                           Liquid

Ionic Characteristic:                Nonionic

Solids Content:                        50 +/-2 %

Solvent:                                   48+% Water

pH:                                         8.0 +/- 1

Specific Gravity:                     ~1.05

Viscosity:                                 ~200cps

Flash point:                              N/A (aqueous product)

 

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Please view our Escoat WPX PDF