Molten metal being poured in a foundry

Foundry

Bentonite for foundry production with improved moulding properties that ensure high quality castings.

Construction

Bentonite for waterproofing, creating barriers and stabilising soils in construction.

Drilling operations

Bentonite for drilling operations, which increases well stability and drilling efficiency.

Agriculture

Bentonite to improve soil fertility and feed additives to improve animal health and productivity.

Food industry

Bentonite for efficient filtration of wine, beer, water, oils and juices.

Hygienic pet litter

High-quality bentonite for the production of litters with excellent moisture and absorption.

GB-Form

Molten metal being poured in a foundry

Activated bentonite powder for injection moulds enriched with sodium cation. Provides stability and strength of the moulds, as well as high quality of the finished castings.

GB-Form

PRODUCT BENEFITS

High strength

Ensures moulds are stable and durable in compression and tension.

Minimal shedding

Meets European quality standards, reducing material loss.

Heat resistance

Withstands high temperatures to prevent deformation and damage to moulds.

High density and fluidity

Ensures accurate filling of the moulds, providing uniformity and clarity of the casting details.

DELIVERY AND PACKAGING

The product is supplied in 25kg bags or 1 tonne big bags. Delivery options within Europe and for export are available.

PROFESSIONAL TECHNICAL SUPPORT

Our team of experts is ready to advise you on the application of bentonite products for your foundry. Contact us for more information

PRODUCT PROPERTIES

ParameterUnitValue
Permeability in wet stateJP240
Compressive strength in wet stateMPa0,9-0,95
Tensile strength in wet stateMPa0,6-0,65
Dieter fluidityJP90-100
Friability in wet state, max%5
Montmorillonite, min%80
Carbonate, max%5
Swelling index, mincm³/2g17
Milling%80% smaller than 0.056mm
Moisture%8-10

Questions about this product

What is GB-Form?

GB-Form is activated bentonite powder from GEOBENT for foundry moulding sands, enriched with sodium cation. It is for stable moulds and castings. It is not a drilling-fluid product — GEOBENT supplies GB-Drill for that.

Which GB-Form values does the GEOBENT page list?

The GB-Form table lists, among other values, montmorillonite min. 80%, moisture 8–10%, swelling index min. 17 cm³/2 g, wet compressive strength 0.9–0.95 MPa and permeability 240 JP. The full table is on the GB-Form page. These are the GEOBENT sheet values.

How is GB-Form packed?

GB-Form is supplied in 25 kg bags or 1 t big-bags. GEOBENT also ships bentonite in bulk. Delivery: Europe and export. The minimum order is one full truck.

How do I order GB-Form?

Order GB-Form by email at info@geobent.pl. Questions: +48 573 588 382. Lead time is from 2 weeks after the order is received. GEOBENT samples are always free.