No-bake & cold-box resin systems for every major casting alloy
BR Chemicals manufactures foundry resins used in no-bake and cold-box moulding processes for ferrous and non-ferrous castings. As a dedicated foundry resin manufacturer based in Gujarat, we produce furan acid-cured resin, phenolic urethane (cold-box/no-bake) resin, alkaline phenolic ester-cured resin and phenolic acid-cured resin — each formulated for a specific combination of alloy, moulding process and strength requirement rather than sold as a one-size-fits-all binder.
Every batch is checked for density, viscosity, compressibility and moisture before dispatch, so the resin you receive performs the same way the last drum did. Below is a detailed look at each grade we manufacture, along with guidance on choosing the right one for your foundry.
Four resin systems, each built for a specific job
Furan Acid-Cured Resin
Furan acid-cured resin is a no-bake binder system used for producing sand moulds and cores for cast iron, SG iron and Ni-Hard castings. Once mixed with a compatible acid catalyst, it cures at room temperature, giving foundries a fast-stripping process without heat or gassing equipment. Our furan resin is formulated for consistent flowability and a predictable working time, so pattern shops can plan strip times around a known bench life instead of guessing batch to batch. It's a common first choice for foundries running high sand-to-metal ratios and looking for good collapsibility after pouring.
Phenolic Urethane Resin
Phenolic urethane (PU/PUCB) resin is a two-part binder system used in both cold-box and no-bake moulding for ferrous and non-ferrous castings. Part I (phenolic resin) and Part II (polymeric isocyanate) react in the presence of a catalyst or amine gas to form a strong, dimensionally accurate mould or core. We manufacture PU resin for foundries that need tight dimensional tolerances and clean strip-off — particularly for cores with intricate geometry where dimensional accuracy affects final casting quality.
Alkaline Phenolic Ester-Cured Resin
Alkaline phenolic ester-cured resin is a no-bake system suited to steel, stainless steel and manganese steel castings, where low nitrogen and low sulphur content in the binder matters for weld integrity and surface finish. Because it's alkaline rather than acid-cured, it avoids some of the veining and gas-related defects that can occur with acid-cured systems on high-alloy steel castings. We manufacture this resin for foundries pouring high-manganese and stainless grades that need a binder chemistry compatible with their metallurgy.
Phenolic Acid-Cured Resin
Phenolic acid-cured resin is a no-bake binder developed for cast iron, SG iron and Ni-Hard applications where high tensile strength in the mould or core is a priority. It's often selected for larger or more complex castings where the mould needs to hold its shape and strength through handling and pouring. We formulate this resin for consistent cure rates and strength development, so foundries get predictable performance across production runs.
How to choose the right foundry resin
Choosing between furan, phenolic urethane and phenolic resin systems usually comes down to three factors: the alloy being cast, the moulding process already in use on the floor, and how much dimensional accuracy the casting requires.
No-Bake Moulding
Furan acid-cured or phenolic acid-cured resin, selected based on required tensile strength and desired strip time.
Cold-Box Cores
Phenolic urethane resin for dimensionally accurate cores, especially with intricate core geometry.
Low-Nitrogen Binder
Alkaline phenolic ester-cured resin, chosen for its low nitrogen and sulphur content and metallurgical compatibility.
Not sure which grade fits your process? Get in touch via our enquiry form with your alloy, sand type and moulding process, and our technical team will recommend a grade.
Common questions about our resins
What is the difference between no-bake and cold-box resin systems?
Which resin is best for cast iron and SG iron castings?
Can BR Chemicals recommend a resin grade for my foundry?
Do you supply resin in bulk quantities?
Need help selecting a resin grade?
Tell us your alloy, casting process and required strength — our technical team will follow up with a recommendation and pricing.
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