What is FGR 95?

Hydrocal® FGR 95 is a high-strength gypsum cements specially formulated for use with glass fiber for fabricating glass-reinforced architectural details. This product is an alpha hemihydrate gypsum-based materials, with low water requirements that result in high-strength, high-density pieces.

Is Hydrocal plaster of Paris?

Hydrocal is much stronger than plaster of paris. It also takes lots more detail, and most of all does not ‘slough off’ like plaster of paris. That is important for a long life scenery base. The sloughing of plaster results in lots of dust and chips on a continuous basis.

How strong is Hydrocal plaster?

Ideal for patterns, figurines, commercial casts, and sculpture. It is not for making outer or mother molds, and it is not recommended for outdoor use. Designed for strength and casting detail. Hydrocal is 30% to 40% harder than casting plaster and works much like plaster in mixing, pouring, and setting.

What is alpha gypsum cement?

Product Description. WHITE ALPHA GYPSUM PLASTER- manufactured at our ultra modern plant in Ahmedabad , India is processed using latest wet-process developed indigenously to give a High strength Gypsum plaster ,which is almost five times as strong as regular Plaster of paris.

Can you carve Hydrocal?

Ultracal, Plaster of Paris and the dozens of other plasters and gypsum cements all have their advantages and disadvantages. Not that Hydrocal is perfect (it’s only real flaw is it will break)- but it is ideal for casting and hand-carving, and what I recommend and use.

Is Hydrocal porous?

Hydrocal is really most like wood. It is a porous material so just about anything that works well with wood will work well with Hydrocal.

How long does Hydrocal take to set?

This can take up to 24 hours or more for a thick surface. On the other hand, there are many situations, like making a plaster waste mold, when you do not want the plaster to dry out before using or de-molding.

What’s the difference between Hydrocal and Ultracal?

The difference between hydrocal and ultracal is that ultracal is harder and denser. On the other hand, hydrocal is a casting plaster that does an excellent job when it comes to holding detail. While hydrocal is easier to work with when it comes to posting casting projects, ultracal is more durable.

How long does Hydrocal take to cure?

Can you sand Hydrocal?

Hydrocal – Ideal for casting lifecast faces, heads, and torsos from alginate molds. Hydrocal is very strong but still retains some of the working properties specific to plaster. May be sanded and refined with steel tools. Great for mother molds and support shells.

How do you seal Hydrocal?

Apply a heavy coat and let it dull down; then wipe off excess by rubbing across the grain. After wood filler has set overnight, apply a coat of a clear acrylic sealer and allow to dry. Sand the pat- tern or model and apply several coats of a clear lacquer. parting compound when cut 10 to 1 with distilled water.

What is difference between plaster of paris and gypsum?

The primary difference between gypsum and Plaster of Paris is that calcium sulphate dihydrate is found in the gypsum, whereas calcium sulphate hemihydrates are contained in the Plaster of Paris. A naturally occurring mineral is gypsum. This is thus the biggest distinction between plaster of paris and gypsum.

What is the difference between gypsum plaster and cement plaster?

Cement plaster gives a rough surface. Whereas gypsum plaster gives a very smooth finish which makes it compatible with paints. During the application of cement, plaster wastages are high. While during the application of gypsum plaster the wastage is nominal.

Is Hydrocal weatherproof?

Hydrocal is waterproof. Aside from that, it is also weatherproof and scratch-resistant.

Can you paint Hydrocal?

Hydrocal plaster is very easy to paint using standard acrylic paints.