PLIOGRIP P444 ISOPHTHALIC POLYESTER RESIN

General Description           

PLIOGRIP P 444 is a medium viscosity unsaturated polyester resin with Isopthalic acid as the chief polybasic acid constituent.  This Resin shows better mechanical, electrical and thermal properties with improved chemical resistance as compared to general-purpose orthophthalate polyester resin.

PLIOGRIP P 444 has been specifically designed to possess excellent wetting properties of glass fibers which are in the form of cloth, mat or chopped fiber and produce composite laminates or moldings with superior mechanical, electrical resistance properties.  These resins exhibit excellent resistance to most mineral and organic acids, solvents and oils etc.  However resistance to oxidizing acids strong acids, and alkalis is poor and therefore applications entailing use of these chemicals should be avoided.

As such PLIOGRIP P444 is recommended for the manufacture of glass reinforced chemical processing equipments, storage tanks, road tankers, boats, containers, railway wagons, building panels, swimming pools, fume extraction systems etc; for use at ambient to moderately elevated temperatures.

TYPICAL PROPERTIES OF PLIOGRIP P444 IN LIQUID STAGE

Appearance	Clear pale yellow Liquid
Specific Gravity @ 25°C	1.10 + 0.02
Viscosity @ 25°C (CPS)	600 +  100
Volatile Content (Wt %)	39 + 3
Acid Value (mgs of KOH/gm)	10 - 18

TYPICAL GEL TIME AT 25°C IS AS FOLLOWS :( 100gms resins)

PLIOGRIP s 1021 3% Cobalt	PLIOGRIP q 8013  50% MEKP	GEL TIME (Minutes)
1.0	1.0	52
1.5	1.5	25
2.0	2.0	18
2.5	2.5	8

The above gelation time decreases approx. by 30% at 30°C and increases approx. by 50% at 20°C.

TYPICAL PROPERTIES OF CURED UNREINFORCED RESIN

Tensile Strength (Kg/Cm²)	600 - 700
Flexural strength (Kg/Cm²)	1050 - 1150
Heat Distortion Temperature (°C)	100 + 5
Barcol Hardness	40 – 45
Water Absorption (24hrs Immersion)	0.15%

 (The specimens for testing are cured for 24 hours at Room temperature followed by Post Curing for 4 hours at 80°C)

POST CURING REQUIREMENTS :

Satisfactory laminates for many applications can be made by curing the laminate at ambient temperatures. However for achieving optimum properties the laminate should be post cured for a period of 4 hours at 80°C. The post curing is most effective when carried out immediately after the 24 hours ambient temperature cure.

Storage :

Should be stored in closed containers in cool conditions away from direct Sunlight. Resins exposed to direct Sunlight may lead to premature gelation even in the absence of a Catalyst. Shelf life of Resin @ 25°C. about 6 months from the date of manufacturing.
 Caution:

Pliogrip Q 8013 should never be mixed with Pliogrip S 1021, as this would cause explosion. The Pliogrip S 1021 should be blended into the resin first. The Pliogrip Q 8013 should be added just before use.

 NOTE :The above information given for general guidance for the use of our Product, keeping in view the variable operating/process conditions and methods, it is recommended that each consumer evaluates the suitability of the products. The company does not accept any responsibility whatsoever for any damage, injury or loss resulting from the use of above information.