VINNOL^® H 15/50

General

Typical applications: 

Surface coating of

• plastic, in particular polar and/or pretreated plastic surfaces
• minerals (e.g. for applications in the construction sector)
• metal
• fabric
• paper

Processing 

VINNOL^® H 15/50 is generally used in dissolved form.

Ketones and esters are preferably used as solvents for VINNOL^® H 15/50. Esters have a lower dissolving power compared to ketones. While aromatic hydrocarbons can be used to a limited extent in combination with true solvents, alcohols and especially aliphatics are non-solvents for VINNOL^® H 15/50.

To prepare the solution, it is recommended to first introduce solvents and liquid additives and then add VINNOL® with stirring. The polymer powder should preferably trickle directly into the stirrer spout in order to achieve uniform wetting and rapid dispersion. Depending on the solvent type, concentration and stirring system, a dissolution time of approx. 30 minutes to approx. 4 hours at room temperature is recommended until a clear, particle-free solution is achieved. By heating the mixture to temperatures of up to approx. 50°C, depending on the solvent system, faster and more complete clear solubility can be achieved.

More information about SOLUBILITY & VISCOSITY behaviour of this product can be seen and downloaded in the DOCUMENTS area at this LINK:

www.wacker.com/h/c/vinnol-h-1550/p/000009612

VINNOL^® H 15/50 can be plasticized with monomeric and polymeric plasticizers such as phthalates, adipates, sebacates, citrates, phosphates, epoxidized compounds and chlorinated paraffins.

VINNOL^® H 15/50 is fully compatible with all other VINNOL® resins. It combines well with many acrylic polymers, ketone resins as well as many epoxy resin systems. Generally, there is good compatibility with alkyd resins that are not supplied in aliphatic solvents, as well as with many polyurethane resin systems. Nitrocellulose, polyvinyl acetate and polyvinyl butyral cannot generally be combined with VINNOL^® H 15/50. The compatibility of VINNOL^® H 15/50 with other polymers must be checked on a case-by-case basis.

If pigments or dyes are used, their compatibility with VINNOL^® H 15/50 must be checked in advance. Some pigments/dyes can produce thixotropic effects and/or negatively influence adhesion. When it comes to zinc pigments, it should be taken into account that they may catalyze decomposition of VC copolymers at elevated temperatures. This also applies to iron oxide pigments.

Despite good inherent stability, for some applications it is necessary to stabilize coatings based on VINNOL^® H 15/50 against heat and/or UV light. For thermal stabilization, epoxy compounds such as epoxidized soybean oil, liquid epoxy resin or glycidyl ethers are often sufficient for low requirements.

Where higher temperatures are involved, it is advisable to use calcium/zinc or organotin stabilizers. Outdoor applications require the additional use of UV stabilizers along with thermal stabilizers optimized for these conditions.

To avoid risk of discoloration, contact with iron should be avoided both during preparation of the solution and during subsequent storage of the product. VINNOL® -based surface coating compounds should be stored in coated containers.

Packaging

Storage

Store VINNOL^® H 15/50 under dry conditions and at room temperature (below 25 °C). If proper conditions are maintained, the product has a shelf life of at least 12 months from the delivery date if stored in the original, unopened containers. Beyond its recommended shelf life, the product is not necessarily unusable, but the user should perform quality control regarding the properties relevant to the application.