Pat-Add DA 787

Properties

Physical Form

Liquid

Product families

Other characteristics

Brand

Pat-Add

Functions

Emulsifier, Stabilizer

Markets

• Automotive & Transportation
• Building & Construction
• Paints & Coatings

Appearance

Clear Amber liquid

Properties

PAT-ADD DA 787 is a unique emulsifier for incorporation of water in organic solvent borne paints and varnishes. The product is readily dissolved in water, at low shear. Contrary to the use of classic emulsifiers, side effects such foaming is kept to a minimum. Furthermore, it ensures rapid incorporation of water into the non-aqueous paint and resistant to phase separation, during storage of the diluted paint system. As opposed to conventionally used additives for water incorporation, no special manufacturing condition is required. However, in order to maintain optimal balance between hydrophobic and hydrophilic ratio, it is advised to avoid the use of hydrophilic pigment dispersing agents, such as soya lecithin, but use instead Pat-Add DA 707.. Excellent shelf life stability is demonstrated in PAT-ADD DA 787, low risk of phase separation, pigment flocculation or gloss reduction, due to the presence of water. PAT-ADD DA 787 can be used in a wide range of alkyd resin based paint systems, including paints based on styrenated alkyd resins.

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Coating Type

• Solventborne Coating
• Top Coat

Technology

CASE Ingredients

Addition and Dosage

PAT-ADD DA 787 is preferably dissolved in the amount of water for dilution purposes. Typically, a quantity of about 20% water containing 2-3% PAT-ADD DA 787- is mixed into the paint system, this leaving about 0,4 to 0,6% PAT-ADD DA 787 in the total quantity of final, water-diluted paint. So the commonly preferred procedure is adding 2 - 3% PAT-ADD DA 787 to water, mixing gently for a few minutes, avoiding air-inclusion. When homogeneous, add this solution into the paint, under typical paint-let-down mixing conditions. As the addition of water, typically results in a modest viscosity increase, it is preferred to maintain initial paint viscosity (so before the aqueous solution of PAT-ADD DA 787 is being added) at a low level. Practical experiences has shown paint viscosity of around 40-50 KU as being optimal conditions for dilution with water. Applicability of PAT-ADD DA 787 is resin and system related and best determined individually for each case. The optimum concentration depending on the individual formulation and conditions.

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HIGHLIGHTS

Enabling paint cost reduction with water replacement; Enabling reduction VOC level; Maintaining standard paint manufacturing conditions; Supports colorant acceptance; Excellent dry film performance, such as high gloss, opacity, adhesion

End Use Applications

Pat-Add DA 787 is recommended for alkyd enamels, specifically for low, medium and modified type alkyds.

Shelf Life & Packaging

The product has shelf life of 24 months from the date of manufacturing; packed in un opened original containers as shipped by Patcham, stored in frost free warehouse.. Drum: - 220.0 kgs, Can: - 25.0 kgs, IBCs: - 1100.0 kgs.