Ester Cure Alkaline Phenolic (APNB) is a two-component, water-based no-bake binder system — a modified alkaline phenolic resole (Part I) cured with a liquid ester co-reactant (Part II). Unlike acid-catalysed no-bake systems, it cures under alkaline conditions, which keeps nitrogen and sulphur content low and makes it a preferred choice wherever pinhole and gas-related defects need to be tightly controlled.
At BR Chemicals, every batch of our Alkaline Phenolic Ester-Cured resin runs through in-house testing for viscosity, solid content and reactivity before dispatch, so your moulding floor gets the same bench life and strip time on shipment after shipment.
An alkaline-cured system chosen where fume control, casting finish and alloy sensitivity matter most.
No acidic fumes at mixing or pouring — a noticeably cleaner moulding floor compared to acid-cured phenolic systems.
Low nitrogen and sulphur levels reduce pinhole risk — suited to steel, stainless steel and manganese steel castings.
Predictable tensile and compressive strength development for dimensionally accurate, defect-free castings.
Controlled cure profile supports easy shakeout without compromising green or cured strength.
Water-based, alkaline (above pH 7) modified phenolic resole resin — the base binder component.
Controls cure speed and gel time — grade selection lets you dial in bench life for your process.
A self-setting mould/core system with clean release, low emissions and dependable strength.
| Property | Typical Value |
|---|---|
| Appearance | Dark brown liquid resin |
| Nature | Alkaline phenolic resole (Part I) |
| Curing Agent | Liquid organic ester (Part II) |
| Solid Content | 45% – 65% (grade dependent) |
| Viscosity | 50 – 300 mPa·s (grade dependent) |
| pH | Above 7 (alkaline) |
| Storage | Cool, dry, shaded area; limited shelf life |
*Values vary by grade and application. Contact our technical team for the datasheet matching your alloy and process.
Share your alloy, casting process and grade requirement — our technical team will follow up with a formulation recommendation and pricing within 24 hours.
Manufacturing foundry resins and refractory coatings for steel, iron and non-ferrous casting industries across India.
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Foundry Resin & Refractory Coating Manufacturer, Gujarat · India
