Monolithics · Plastic Refractory
Phosphate- and clay-bonded plastic — ready to ram
Plastic refractories ship as pre-mixed, ready-to-ram material in sealed slugs or pails — no on-site mixing, no water addition, no curing schedule before heat-up. The plastic-state material is rammed into place against existing brick or castable, dries on first heat-up and consolidates to a dense, monolithic patch. The right product for hot-spot repair, complex cavities and induction-furnace work.
Ready-Mix
No Water Addition
Phosphate
or Clay Bonded
25 kg
Sealed Slug
Cold Heat-Up
OK
Overview
Plastic Refractory — what they are, when to specify
Plastic refractory is a stiff, putty-like mix of refractory aggregate, plasticising clay (or phosphate bond) and water, supplied wet and ready to ram. Unlike castables, plastics need no formwork and no controlled water addition — you slice the slug, ram it into place, and heat-up. The bond develops on first heat-up rather than during a controlled cure.
Grades
Stocked grades — pick by service condition
Indicative properties only. Final specification is set per application after we review your operating envelope.
| Grade | Composition | Service Limit | Typical Application |
|---|---|---|---|
| Phosphate-Bonded High-Alumina | 70-80% | 1700 °C | Hot-spot repairs, burner ports, EAF roof patches |
| Clay-Bonded Fireclay | 40-50% | 1450 °C | Boiler patches, fireclay-brick repairs |
| Clay-Bonded High-Alumina | 60-70% | 1550 °C | Reheat furnace, ladle backup repairs |
| Silica-Based Plastic | Silica-rich | 1650 °C | Coke oven repairs, glass-tank breast wall |
| SiC-Bonded Plastic | with 30-50% SiC | 1500 °C | Aluminium runners, abrasion-prone hot-spots |
| Acidic Induction-Furnace Ramming Mass | Silica 95%+ | 1700 °C | Coreless induction furnace lining |
| Basic Induction-Furnace Ramming Mass | MgO 80%+ | 1700 °C | Basic-melting induction furnace lining |
Supplied as pre-mixed slugs in moisture-barrier sealed packs (typically 25 kg). Shelf life 4-6 months from manufacture if storage conditions are maintained. Ramming tools available on indent.
Datasheets available on request — email punesales@chaneyco.com with your specification and we will send the matching PDF.
Applications
Where plastic refractory are specified
Steel & Foundry
Induction furnace linings, ladle hot-spots, EAF roof delta repairs
Aluminium
Holding furnace patches, transfer launder repairs
Cement & Lime
Kiln burner port repairs, preheater cyclone hot-spots
Glass & Ceramics
Tank breast wall, port crown repairs
Power & Energy
Boiler hot-face patches, FBC bed repairs
Why Chaneyco
Three reasons buyers source plastic refractory from us
Stocked at Chakan, dispatched fast
Plastic Refractory are held at our Chakan plant in Pune. Standard grades dispatch same-day to plants in the Pune industrial belt and within days pan-India by road or rail.
Spec advice before quote
Choosing the right grade for the operating envelope makes a much bigger lifecycle-cost difference than haggling on the cheapest grade. Our technical team will recommend by zone before quoting.
ISO 9001:2015 audit-ready
Every batch ships with composition and dimensional QC records, supported by our ISO 9001:2015 certification (Cert. 11553, AQSR / USAC accredited, valid through 17 Sept 2027).
Frequently Asked
Plastic Refractory questions, answered
Plastic refractory vs castable — when?
Use plastic for repairs, hot-spot patches, irregular cavities and any work where you cannot afford a controlled dry-out. Use castable for new linings, large floor pours and any work where you want a pre-engineered formed shape. Plastic is the field-friendlier material; castable is the engineered material.
Do plastics need a special heat-up?
A normal furnace warm-up is fine. Plastics develop their bond on first heat — there is no risk of trapped water blow-off because the water content is low and the porosity drains it gradually as you heat. This is exactly why plastics are the go-to for emergency repairs: get the patch in, fire up, get back to production.
Can you supply induction-furnace ramming mass?
Yes. Acidic (silica-based) and basic (magnesia-based) ramming masses for coreless induction furnaces, supplied per heat-mix or per furnace size. Lining-life optimisation guidance available from our technical service team.
Talk to a Refractory Engineer
Tell us about your application
Share the basics — furnace type, operating temperature, atmosphere, the lining zone you are specifying. Our technical team responds within one working day with grade recommendation, indicative quote and lead time.