Chartwell D-535.1

Identification & Functionality

Carrier

Dipropylene Glycol,

Propylene Glycol,

Solvent-based

Chemical Family

Organometallics

CASE Ingredients Functions

Adhesion Promoter,

Coupling Agent

Plastics & Elastomers Functions

Adhesion Promoter

Technologies

CASE Ingredients,

Elastomers,

Plastics

Product Families

CASE Ingredients — Additives

Functional Additives

Elastomers — Elastomer Additives

Surface Modifiers

Plastics — Polymer Additives

Surface Modifiers

Features & Benefits

Materials Features

Improves Physical Properties

Applications & Uses

Compatible Polymers & Resins

Polyethylenes (PE),

Polypropylenes (PP)

Application

(1) Pigment dispersion: Recommended for dispersion of difficult to disperse pigments, ie phthalo blue/ green, carbon black, etc. Also for all inorganic pigments, conductive pigments, and mineral fillers. Particularly useful for the dispersion of these pigments in solvent-borne coatings and polyolefins.

(2) Thermoplastics: Use of D-535.1 to treat mineral fillers, ie calcium carbonate, mica, silica, clay, etc. will result in improved physical properties of the compounded polyolefin.

Properties

Physical Form

Liquid

Physical Properties

	Value	Units	Test Method / Conditions
Active Matter Content	24	wt%	—
Complexed Organics	9.9-10.1	—	—
Specific Gravity	1.12	g/ml	—
Total Metal Content	4.3 - 4.5	%	—
Organofunctionality	Hydrocarbon	—	—
pH Value (2% Solution)	4	—	—

Regulatory & Compliance

Certifications & Compliance

Comprehensive Environmental Response, Compensations & Liability Act (CERCLA),

REACH (Europe)

Chemical Inventories

AICS (Australia),

DSL (Canada),

ECL (Korea),

IECSC (China),

KECI (Korea),

TCSI (Taiwan),

TSCA (USA)

Technical Details & Test Data

Procedure

• HIGH SHEAR MIXING NECESSARY IN ALL SOLVENT-BORNE SYSTEMS

(1) Coatings/ Inks: Optimum performance is achieved when added directly to the grind stage resin and high shear mixed for 15 mins before adding other components. Must be high shear mixed with a Cowles type mixer. Milling alone is not sufficient.

(2) Adhesives: 1.0-2.0 phr, post add recommended under agitation.

(3) Plastics: 1.0-2.0 phf (parts per hundred filler); recommend pretreat of pigments/ fillers in a Henschel or similar mixer and subsequently compound with resin. For high surface area pigments/ fillers, i.e. fumed silica, carbon black, phthalo, and similar use 3.0-5.0 phf.

(4) Rubber: 1.0-3.0 phr, add directly onto silica or other filler and compound in a Banbury mixer.

Product Performance

Adhesion of Polyester Baking Enamel on CRS

Conclusions:a

1. Without adhesion promoter (control>50% of coating removed

2. Addition of D-525.31 to the grind stage sharply reduces coating removal as follows:

Control – 50%
2phr – <1%
3phr – 0%

Current recommendations: C-515.71HR, C-515.71HRX

3. Excellent humidity and salt-fog resistance