company tower banner
HK Research Company Logo

HK Research R0059

HK Research R0059 is a resilient, light stabilized void free polyester casting resin.

Polymer Name: Thermoset Polyester

Processing Methods: Casting

End Uses: Counter Top Flatstocks, Synthetic Marble

Cure Method: Chemical Cure

Density: 1080.0 - 1080.0 kg/m³

Technical Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Plastics & Elastomers Functions
Technologies

Features & Benefits

Features
  • Low viscosity
  • Produces void-free castings when properly compounded
  • 100% Isophthalic resin system for excellent toughness and chemical resistance
  • Outstanding stain resistance
  • High heat distortion temperature
  • Resilient for thermal shock resistance
  • Excellent light transmission properties
  • Superior color and clarity
  • Uv inhibited

Applications & Uses

Cure Method
Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Uses
  • R0059 Casting Resin is designed for use in the fabrication of flat stock, such as countertops, tabletops and vanities for use with drop-in bowls. The high reactivity, which gives this resin its toughness and chemical resistance, can cause stress cracking if it is cast in bowl molds. Some manufacturers have found that they can successfully cast bowls with this resin if they remove the "hat" very early in the cure cycle and demold the part shortly after it reaches peak exotherm. Both of these steps require extra precautions on the part of the molder.
  • Vanity tops and countertops made with R0059 Resin and the densified ATH filler, such as R. J. Marshall's DF-40 have consistently passed the CMI stain resistance test without the presence of a gel coat.
  • R0059 Resin will produce castings of excellent color when used with ATH fillers such as R.J. Marshall's DF-40 at a filler concentration of 65 - 70% by weight.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Viscosity, 77°F250 - 350cps
Weight per gallon9lbs.
Specific Gravity1.08
Stability, Uncatalyzed, 77°Fmin. 3months
Neat Resin Properties
ValueUnitsTest Method / Conditions
Gel Time, 77°F, 1.0% RCI 46-7029 - 12minutes
Gel to Peak10 - 15minutes
Peak Exotherm, 100 gram mass350 - 380°F
Filled Resin Properties
ValueUnitsTest Method / Conditions
R0059 (parts by weight)35
DF-40 (parts by weight)65

Technical Details & Test Data

Properties
% MEKP MATRIX GEL TIME (77°F) TYPICAL DEMOLD TIME
1.0 20 minutes 50 - 60 minutes
1.25 16 minutes 40 - 50 minutes
1.5 12 minutes 30 - 40 minutes

 

Safety & Health

Safety Considerations
  • HK Series Isophthalic Casting Systems are based on a resin that contains styrene monomer, which is a flammable liquid. Keep away from sparks, heat and open flame (including pilot lights). Electrical equipment should be vapor-proof and protected from breakage.
  • Styrene vapors are heavier than air and will tend to concentrate in the low areas of molds and in pockets immediately above the floor area. To keep vapors within a safe limit in all areas, adequate ventilation or suction fans should be used that will remove these styrene monomer vapors.

All equipment must be grounded - including spray guns and molds.

Both the polyester gel coat and the catalyst may cause burns to eyes and skin. Do not get in the eyes! Avoid breathing vapors! Gel coat applicators should wear a NIOSH approved respirator effective for vapors, spray mist and dust. In case of accidental contact, remove contaminated clothing and wash affected skin areas with soap and copious quantities of water. Contact a physician if persistent skin irritation occurs. For eyes, immediately flush with plenty of water for at least 15 minutes; call a physician immediately. Wash contaminated clothing before reusing.