VINNAPAS® EN 421

VINNAPAS® EN 421 is an aqueous, self -crosslinking copolymer dispersion of vinyl acetate and ethylene, produced without the use of Alkyl Phenol Ethoxylate (APEO) based materials. It is particularly suited for the formulation of heat-curing or self-curing adhesives.



Properties

VINNAPAS® EN 421 has the softness and flexibility typical of a vinyl acetate-ethylene copolymer adhesive base. The self-crosslinking nature of the dispersion provides excellent wet strength and good solvent resistance. VINNAPAS® EN 421 resists discoloration on aging and leaves no residual odor in the finished product.

Disclaimer

All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product's fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence. This disclaimer of warranty and liability also applies particularly in foreign countries with respect to third parties' rights.

Protect against frost.

Storage

When the dispersion is stored in tanks, proper storage conditions must be maintained. If stored in the original, unopened containers at cool (below 30 °C), but frost-free temperatures the product has a shelf life of 9 months from the date of manufacture. Any longer periods for the maximum storage period that may be described in the Certificate of Analysis which accompanies each shipment of the product, take preference over this suggestion in which case the time period stated in the Certificate of Analysis shall be solely authoritative. Iron or galvanized-iron equipment and containers are not recommended because the dispersion is slightly acidic. Corrosion may result in discoloration of the dispersion or its blends when further processed. Therefore, the use of containers and equipment made of ceramics, rubberized or enameled materials, appropriately finished stainless steel, or plastic (e.g. rigid PVC, polyethylene or polyester resin) is recommended. As polymer dispersions may tend to superficial film formation, skins or lumps may form during storage or transportation. Filtration is therefore recommended prior to utilization of the product.

Preservation for Transport, Storage and further Processing

The product is adequately preserved during transportation and storage if kept in the original, unopened containers. However, if it is transferred to storage tanks, the dispersion should be protected against microbial attack by adding a suitable preservative package. To maintain proper storage conditions appropriate measures should also be taken to ensure cleanliness of the tanks and pipes. In a storage tank in which the product is not stirred, it is advisable to contact your biocide representative/supplier. Proper procedures must be set up in order to prevent microbial attack between necessary periodic tank cleaning and sanitization. These procedures will vary, since loading and unloading practices in each storage situation will differ slightly. Finished products manufactured from polymer dispersions usually also require preservation. The type and scope of preservation will depend on the raw materials used and the anticipated sources of contamination. The compatibility with other components and the efficacy of the preservative should always be tested in the respective formulation. Preservative manufacturers will be able to advise you about the type and dosage of preservative required.

Sales and support

Wacker Chemical Corporation
6870 Tilghman St
Allentown, PA 18106-9346
United States
+1  610  336-2700 (Phone)
+1 517 264-4088  (Fax)
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Products Technical data
Appearance of the dispersion film Density Filler and pigment compatibility Frost resistance Glass transition temperature Minimum film forming temperature pH Predominant particle size Protective colloid / emulsifier system Solids content Surface of the dispersion film Viscosity, dynamic
VINNAPAS® 315 - - 1.05 g/cm³ 1,050 lb/gal - - protect from freezing[1] protect from freezing[1] approx. 17 °C[3] approx. 62.6 °F[3] - - 4.0 - 5.0 4.0 - 5.0 1200 - 1800 nm[2] 1200 - 1800 nm[2] polyvinyl alcohol polyvinyl alcohol 54.0 - 56.0 % 54.0 - 56.0 % - - 1800 - 2700 mPa·s 1800 - 2700 mPa·s
VINNAPAS® 323 - - 1.05 g/cm³ 1,050 lb/gal - - protect from freezing[1] protect from freezing[1] approx. 23 °C[3] approx. 73.4 °F[3] - - 5.0 - 6.0 5.0 - 6.0 - - polyvinyl alcohol polyvinyl alcohol 54.0 - 56.0 % 54.0 - 56.0 % - - 1300 - 2300 mPa·s 1300 - 2300 mPa·s
VINNAPAS® 400 - - 1.05 g/cm³ 1,050 lb/gal - - protect from freezing[1] protect from freezing[1] approx. 0 °C[3] approx. 32.0 °F[3] - - 4.0 - 5.0 4.0 - 5.0 - - polyvinyl alcohol polyvinyl alcohol 54.0 - 56.0 % 54.0 - 56.0 % - - 1800 - 2700 mPa·s 1800 - 2700 mPa·s
VINNAPAS® 400 H - - 1.05 g/cm³ 1,050 lb/gal - - protect from freezing[1] protect from freezing[1] approx. 0 °C[3] approx. 32.0 °F[3] - - 4.0 - 5.5 4.0 - 5.5 - - polyvinyl alcohol polyvinyl alcohol 54.0 - 56.0 % 54.0 - 56.0 % - - 3100 - 4400 mPa·s 3100 - 4400 mPa·s
VINNAPAS® 401 - - 1.05 g/cm³ 1,050 lb/gal - - protect from freezing[1] protect from freezing[1] approx. -15 °C[3] approx. 5.0 °F[3] - - 5.0 - 6.5 5.0 - 6.5 - - polyvinyl alcohol polyvinyl alcohol 54.0 - 56.0 % 54.0 - 56.0 % - - 1300 - 2200 mPa·s 1300 - 2200 mPa·s
VINNAPAS® 920 - - 1.05 g/cm³ 1,050 lb/gal - - protect from freezing[1] protect from freezing[1] approx. -20 °C[3] approx. -4.0 °F[3] - - 4.2 - 5.2 4.2 - 5.2 - - PVOH and surfactant PVOH and surfactant 54.0 - 56.0 % 54.0 - 56.0 % - - 800 - 2000 mPa·s 800 - 2000 mPa·s
VINNAPAS® EN 421 - - 1.06 g/cm³ 1,060 lb/gal - - protect from freezing[1] protect from freezing[1] approx. 0 °C[4] - - - 5.3 - 6.3 5.3 - 6.3 - - anionic surfactants anionic surfactants 51.5 - 52.5 % 51.5 - 52.5 % - - 300 - 800 mPa·s 300 - 800 mPa·s
VINNAPAS® EP 11 (CGN) opaque[8] opaque[8] - - very good[7] very good[7] protect from freezing[1] protect from freezing[1] approx. 3 °C[4] - 0 °C[5] 32.0 °F[5] 4.0 - 5.0 4.0 - 5.0 - - polyvinyl alcohol polyvinyl alcohol 49 - 51 % 49 - 51 % slightly sticky slightly sticky 4000 - 6000 mPa·s 4000 - 6000 mPa·s
VINNAPAS® EP 1400 - - 1.05 g/cm³ 1,050 lb/gal - - protect from freezing[1] protect from freezing[1] approx. 0 °C[3] approx. 32.0 °F[3] - - 5.0 - 6.0 5.0 - 6.0 - - polyvinyl alcohol polyvinyl alcohol - - - - 1700 - 2400 mPa·s 1700 - 2400 mPa·s
VINNAPAS® EP 4600 - - approx. 1.07 g/cm³ approx. 1,070 lb/gal - - protect from freezing[1] protect from freezing[1] approx. 5 °C[4] - - - 6.0 - 7.5 6.0 - 7.5 - - - - 62.5 - 64.0 % 62.5 - 64.0 % - - 200 - 800 mPa·s 200 - 800 mPa·s
VINNAPAS® EP 6300 - - 1.06 g/cm³ 1,060 lb/gal - - protect from freezing[1] protect from freezing[1] approx. 0 °C[3] approx. 32.0 °F[3] - - 4.3 - 5.3 4.3 - 5.3 - - PVOH and surfactant PVOH and surfactant 62.0 - 64.0 % 62.0 - 64.0 % - - 600 - 1500 mPa·s 600 - 1500 mPa·s
VINNAPAS® EP 7000 - - 1.05 g/cm³ 1,050 lb/gal - - protect from freezing[1] protect from freezing[1] approx. -3 °C[3] approx. 26.6 °F[3] - - 4.5 - 5.5 4.5 - 5.5 - - - - 69.5 - 71.5 % 69.5 - 71.5 % - - 1200 - 2700 mPa·s 1200 - 2700 mPa·s
VINNAPAS® EP 724 Clear, Glossy[8] Clear, Glossy[8] approx. 1.07 g/cm³ approx. 1,070 lb/gal very good[7] very good[7] protect from freezing - approx. 19 °C[4] - 4 °C[6] - 4.0 - 6.0 4.0 - 6.0 - - PVOH PVOH 54 - 56 % 54 - 56 % Tack free[9] - 1500 - 2500 mPa·s 1500 - 2500 mPa·s
VINNECO® EAF 67 (100 MB) clear, glossy[8] clear, glossy[8] - - very good[7] very good[7] protect from freezing[1] protect from freezing[1] approx. -35 °C[4] - 0 °C[5] 32.0 °F[5] 4 - 5 4 - 5 - - surface active agents surface active agents 58 - 62 % 58 - 62 % very tacky very tacky 4500 - 9500 mPa·s 4500 - 9500 mPa·s
Legend
[1] Frost resistance | specific method,  [2] Predominant particle size | specific method,  [3] Glass transition temperature | DSC, specific method,  [4] Glass transition temperature | specific method,  [5] Minimum film forming temperature | DIN ISO 2115,  [6] Minimum film forming temperature | specific method,  [7] Filler and pigment compatibility | specific method,  [8] Appearance of the dispersion film | Visual,  [9] Surface of the dispersion film | specific method 

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