Crown Gyplast

Crown Gyplast

SKU: C30AG. Categories: , .

Product Description

A gypsum based plaster suitable for application on most internal backgrounds including brick, block and concrete. It dries to provide white, smooth and matt finish.

Characteristics: Manufactured from gypsum hemihydrates, special additives to control working and setting characteristics and lightweight fillers to improve plaster’s workability, coverage and application.

Advantages: Varying thickness – up to 2mm. High filling/ plastering power. Non-cracking. High stability. Easily sanded. Low VOC. Smooth finish. Fire resistance – when exposed to direct flame for 3 min, it turns grey/black in colour but protects wooden surfaces.

Finish: Matt, smooth when sanded.

Application: By trowel, palette knife or spatula

Mixing: This product should be mixed /stored in dry, non-humid conditions preferably above 10oC. Mix approximately 13-14 litres of water per 25 Kg Bag (1 part by volume of water to 2 parts by volume of powder). If necessary, carefully add water until the desired consistency is achieved. Leave to mature for 1 – 2 minutes.

Product has a short pot-life of 20 min. at 25oC. Shaking the mixture in between will give extended pot life of 30- 40 min. Mix only enough quantity to be used within the pot-life.

Drying Times: Surface dry: 1 hour.

Setting time: Approximately 2 hours. Setting times vary slightly with changes in atmospheric temperature and water content.

Dry to sand: 4 hours.

Spreading Capacity: Depends on the thickness and surface porosity.

Equipment Cleaner: Water

Colour range: White/off White

Pack Sizes: 25 Kg only.

Availability: From Crown Depots and through Crown Stockists.


All surfaces should be dry, clean and free of debris.

For health & safety information, please refer to our Material Safety Data Sheet (MSDS)

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