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Crystic® Solid Surface Casting Resin 935PA

1 of 176 products in this brand
Crystic® Solid Surface Casting Resin 935PA is a pre-accelerated, high-performance, isophthalic neopentyl glycol unsaturated polyester resin. It is developed specifically for the casting of solid surface products. This high-clarity, low-color resin is supplied at a low to medium viscosity in order to accept the maximum level of fillers, including aluminum trihydrate (ATH) and colored chips or natural stone. For the production of flat sheets, where quicker gel times and cure times are required, Crystic® 935PAHR is available on request.

Polymer Name: Polyester (unspecified)

Functions: Resins, Binders & Matrix Materials, Surface Finish

Chemical Family: Isophthalics, Polyesters, Unsaturated Polyester (UPE)

Color: Pink

Processing Methods: Casting

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Materials Features
Features and Benefits

Solid Surface is produced from Crystic 935PA mixed with Aluminum Tri-Hydrate and polyester chips, using either continuous or batch mixing equipment fitted with a vacuum facility. Whilst it is not essential, optimum processing conditions use vibration on the molds when the resin mix is being cast.

  • Solid Surface is homogeneous throughout so can easily be machined, polished and repaired during production or in service. i.e. scratches can be polished out and holes filled and abraded back
  • The use of vacuum and vibration eliminates the introduction of air bubbles and enables the surface to be successfully abraded and polished, if required.
  • Inclusion of Poly Stone chips allows different esthetic finishes to be achieved
  • Using ATH as the filler provides translucency to the Solid Surface, imparts fire retardancy and offers resistance to most cleaning chemicals.

Applications & Uses

Composites Processing Methods
Recommended Applications

Applications using Crystic 935PA include high performance sanitary ware, vanity units, worktops and cladding panels in kitchens, bathrooms and commercial premises.

Formulation Guidelines

Crystic 935PA should be allowed to attain workshop temperature (18°C - 20°C) before use. The recommended catalyst is Butanox M50 which should be added at 2% based on the resin content.

Recommended formulations for the casting of Crystic Stonecast Solid Surface are shown below:

  Mix 1* Mix2†
Crystic 935PA 40% 35%
Aluminum Tn-Hydrate (ATH) — Martinal 0N935 48% 53%
Chips - ACS Poly Stone chips 12% 12%

* To meet Class I rating to BS476 Part 7 1987
†To meet Class 0 rating to BS476 Part 6 1989

Properties

Color
Typical Liquid Resin Properties
ValueUnitsTest Method / Conditions
Viscosity (at 25°C)6Poise
Volatile Content37%
Acid Value17mg KOH/g
Stability (at 20°C)3Months
Gel Time (at 25°C, using 2% Butanox M50)10Minutes
Resin Properties - Unfilled Casting (Cured)
ValueUnitsTest Method / Conditions
Barcol Hardness (Model GYZ 934-1)*44
Deflection Temperature (under load 1.80 MPa) †*105ºC
Water Absorption (24h, at 23°C)*24mg
Tensile Strength*60MPa
Tensile Modulus*3000MPa
Elongation (at break)*2.2%
Note

* Curing Schedule—24hrs at 20°C, 3 hrs at 80°C
†Curing Schedule —24 hrs at 20°C, 5 hrs at 80°C, 3 hrs at 120°C

Regulatory & Compliance

Approvals

Fully cured Solid Surface based on Crystic 935PA meets the following criteria:

  • Tested by FIRA to BS EN438. 1991 (Full certificate available on request)
  • Class I rating to BS476 Part 7 1987
  • Class 0 rating to B5476 Part 6 1989
  • M2 FO rating to the Epiradiateur NFF - 16-101 Test

Technical Details & Test Data

Post Cure

For optimum properties, Solid Surface should be post cured before being put into service. The Solid Surface should be allowed to cure for 24 hours at 20°C and then be oven cured for 3 hours at 80°C

Casting of the Crystic Stonecast Solid Surface

For full details on the casting method, please refer to the Scott Bader “Application Guide for the casting of Crystic Stonecast Solid Surface.”

Pot Life of Crystic Stonecast Solid Surface Mix
Temperature Mix 1
15°C 27.5
20°C 20
25°C 12
30°C 9

Different filler grades and formulations may affect properties and performance. The mold, resin mix and workshop should all be at or above 15 °C before casting is carried out.

Packaging & Availability

Packaging Type
Packaging
Crystic® 935PA is supplied in 25kg, 225kg and 1 ton containers.

Storage & Handling

Storage
Crystic® 935PA should be stored in the dark in suitable closed containers. It is recommended that the storage temperature should be less than 20°C where practical, but should not exceed 30°C. Ideally, containers should be opened only immediately prior to use.