Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Composite Materials Functions
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Features and Benefits
Crystic Stonecast Gelcoat 95PA combined with the Poly Stone colored chips, produces films which have the same esthetic appeal of Solid Surface, i.e. numerous and varied granite/marble finishes, which are now fashionable.
Applications & Uses
- Markets
- Applications
- Application Method
- Composites Processing Methods
- Applications
- Crystic Stonecast Gelcoat 95PA combined with the Poly Stone colored chips is recommended for use as a Spray Granite effect on vanity units, worktops/seating in kitchens, bathrooms and commercial premises including fast food restaurants, pubs, offices and airports.
- Pot Life
The temperature, and the amount of Catalyst M affect the geltime, and hence the pot life of Crystic Stonecast Gelcoat 95PA.
Table 1: Geltime in minutes of Crystic Stonecast Gelcoat 95PA at varying temperatures, with 2% Norox KP9 catalyst.
Temperature Pot Life In Minutes 15°C 22 20°C 14 25°C 9 The gelcoat mold and workshop should all be at or above 15°C before curing or spraying is carried out. Scott Bader (Pty) Ltd. will not be liable for problems caused by use at lower temperatures than recommended.
N.B. Peroxide catalysts are highly reactive and may decompose with explosive violence, or cause fires, if they come into contact with flammable materials, metals or accelerators. For this reason they must never be stored in metal containers or be mixed directly with accelerators.
Spray Application of Crystic Stonecast Spray Granite Gelcoat 95PA / Poly Stone Combination: There are two basic methods plus variations for spraying of the Crystic Stonecast Spray Granite Gelcoat / Poly Stone combinations - dry and wet spraying. For full details of all the methods available to spray the Crystic Stonecast Spray Granite Gelcoat please refer to the following Application Guides:
The Methods of Spraying Crystic Stonecast Spray Granite Gelcoat;
- Cup Gun Dry Spraying Method
- Particle Pump/Dry Spray Applicator (DSA) Method
- Wet Spray Method
- Formulation Guidelines
Crystic Stonecast Gelcoat 95PA should be allowed to attain workshop temperature 15ºC - 20ºC before use. The recommended starting formulation for the combination with the Poly Stone chip is:
- 75% Crystic Stonecast Gelcoat
- 95PA 25% Poly Stone colored chips
This combination requires only the addition of catalyst to start the curing process. The recommended catalyst is Andonox® KP9 which should be added at 2%, the addition level calculated on the weight of the Crystic Stonecast Gelcoat 95PA present in the combination with the Poly Stone chips.
Properties
- Color
- Gelcoat Properties - Unfilled Casting (Cured)
- Typical Gelcoat Properties (Uncured)
| Value | Units | Test Method / Conditions | |
| Barcol Hardness (Model GYZ 934-1) | 44 | — | BS 2782 |
| Water Absorption (24h, at 23°C) | 24 | mg | BS 2782 |
| Deflection temperature (under load 1.80 MPa)† | 100 | ºC | BS 2782 |
| Elongation (at break) | 2.2 | % | BS 2782 |
| Tensile Strength | 60 | MPa | BS 2782 |
| Tensile Modulus | 3000 | MPa | BS 2782 |
| Value | Units | Test Method / Conditions | |
| Viscosity (at 25°C, ICI Cone and Plate) | 210 | Centipoise | BS 2782 |
| Gel Time (at 25°C, using 2% Norox KP9 catalyst) | 9 | Minutes | BS 2782 |
| Stability (in dark at 20°C) | 3 | Months | BS 2782 |
Technical Details & Test Data
- Post Curing
- Satisfactory laminates can be made with the Crystic Stonecast Gelcoat 95PA by curing at Workshop temperature (20ºC). However where optimum properties of the Crystic Stonecast Gelcoat 95PA are required, such as in contact with hot and cold water, the laminates must be post cured before being put into service. The molding should be allowed to cure for 24 hours at 20ºC and then oven cured for 3 hours at 80ºC.
Packaging & Availability
- Packaging Type
- Packaging
- Crystic Stonecast Gelcoat 95PA is supplied in 25Kg containers and 225Kg drums.
Storage & Handling
- Storage
- Crystic Stonecast Gelcoat 95PA should be stored in the dark in suitable closed containers. It is recommended that the storage temperature should be less than 20ºC where practical, but should not exceed 30ºC. Ideally, containers should be opened only immediately prior to use. Where they have to be stored outside, it is recommended that drums be kept in a horizontal position to avoid the possible ingress of water. Wherever possible, containers should be stored under cover.