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Polycryl C-501 Clear

Polycryl C-501 Clear is a vinyl ester tooling gel coat, acrylic modified formulation. These gel coats are formulated specifically to meet the stringent specifications of the Marine and Transportation markets. Polycryl gel coats are formulated for spray with standard pressure pot equipment or air assisted airless equipment. Please refer to the “Polycryl Tooling Gel Coat Application Guide” before applying these products. Unacceptable results can occur when used improperly.

Chemical Family: Vinyl Esters, Vinyls, Vinylics & Vinyl Derivatives

Functions: Surface Finish

Color: Transparent

Features: Chemical Resistance, Faster Cure, High Gloss, High Heat Distortion Temperature, High Performance

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Knowde Enhanced TDS

Identification & Functionality

Composite Materials Functions

Features & Benefits

Labeling Claims
Features
  • Superior Gloss and Chemical Resistance.
  • High Heat Distortion Temperature.
  • Excellent Cure, High Barcol.
  • Low VOC, MACT Compliant.

Applications & Uses

Application
  • Agitate slowly but thoroughly and bring temperature into 70-80° degree range.
  • Catalyze at 2.0% with United Initiators 925H or Akzo Nobel L50a, no equivalent. No reduction or other additions are necessary.
  • For best results apply with conventional air assisted airless equipment. 1840 –
  • .1850 tip size.
  • Fluid pressure approximately 35 – 45 lbs.
  • For air assisted airless equipment, utilize approximately 25 – 35 lbs. of air assist.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Viscosity12,000- 16,000CPS
LVF (#4 At 6)1,600 - 2,200
LVF (#4 At 60)2,700 - 3,500
LVF (#4 At 30)6.0 – 8.0
Thix Index18 - 26
Gel Time (2.0% United Initiators 925H)2021-07-12
Gel To Peak375 – 405
Peak Exotherm (F/100 gm)35 - 38.5%
HAPS35-40%
934 Barcol 30 gram qt.Lid (1hour)40-45
Barcol (24 hours)9.1 - 9.2lbs.

Safety & Health

Precautions
  • DO NOT apply excess or uneven film thicknesses as pre-release and or porosity may result.
  • Catalyzed masses will get extremely hot, volatilize and crack. Avoid catalyzed mass accumulations/waste as contact with skin or combustibles/flammables can result in injury or fire.
  • While these products do achieve a casting 934 Barcol hardness of 35 – 40, do not expect to read those figures if checking Barcol hardness of the tool itself. Barcol Impressors require 31 cured mils minimum to register the hardness of film. That thickness is not achieved from 30 or 40 wet mils with conditions of evaporation and shrinkage. A Barcol point/impressor may penetrate the Tool’s gel coat and read higher if encountering glass or lower if resin.
  • Plugs, pumps, spray guns, and product containers should be properly grounded before use.
  • A good high quality high temperature paste wax or a liquid semi-permanent product is highly recommended.

Storage & Handling

Stability-Shelf Life-Storage

These products are stable for 2 months if stored below 77 F and out of direct sunlight, in original
UNOPENED CONTAINERS.