PRETACK PL-91

PRETACK PL-91 is a light colored, premium, aliphatic hydrocarbon resin with a narrow molecular weight distribution. It is odor improved grade with low odor, low wax cloud point. It has excellent compatibility with EVA, APP, APAO, styrene block polymers (such as SIS, SEBS, and SBS), Natural Rubber and many kinds of synthetic rubbers, as well as natural tackifier resins (such as terpene, colophonyl and its derivatives).This grade provides good adhesive capability, excellent aging stability and light color in Hot Melt Pressure Sensitive adhesive and Hot Melt Adhesives applications.

Key Characteristics:

• Good compatibility with EVA, SIS, and other polymers

• Low Wax Cloud Point

• Good thermal resistance

• Low VOC and low odorhydrocarbon resin china

Typical Properties

Property	Test method	Unit	Typical value
Color (50% resin solid in Toluene)	(ASTM D1544)	Ga #	Max5#
Softening point (Ring & Ball)	(ASTM E28)	℃	89-96
Melt viscosity(175℃)	(ASTM D3236)	mPa·s	Max 500
Wax Cloud Point (EVA/Resin/Wax=20/40/40)	(ETM 22-10)	℃	Max 90
Glass Transition Temperature (Tg)	midpoint	℃	47
Acid value	(ASTM D974)	mgKOH/g	Max 0.30
Specific gravity ,@25℃	(ASTM D71)	20/20℃	0.92-0.99

Note: EVA=Vinyl acetate content of 27.5%(wt), Wax=Paraffin wax at 68℃ melt point.

Application

HMPSA, Solvent based PSA, Hot Melt Adhesive, Sealants.

Packaging

PL-91 is available in 25kgs paper bag or 500kgs/1000kgs in bulk bag.

GRESIN and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

Storage

Inside storage is recommended and keep at temperature not exceeding 30oC. Pelletized forms of resins may block or lump in hot weather climates or if stored near heat sources. Resins are prone to gradual oxidation, some more so than others. This could result in darkening and/or it could have an adverse effect on the solubility of the resin in organic solvents or on its compatibility with polymers.