PVC resin for pipe, conduit and fittings.
Pipe is the single largest use of PVC resin in Bangladesh. Water supply, sewerage, irrigation, electrical conduit and building services all depend on it — and every one of those products starts with the right grade of resin.
Grade selection
Three grades, three jobs on your line.
Different products need different resin. The ring on each card is drawn to its K value — a thicker wall means a higher K value, higher molecular weight and higher melt viscosity.
K 66 · Suspension
SIAMVIC® 266RC
The main pipe grade. Pressure pipe, sewage pipe, electric duct and rigid profile. Stable gelation and consistent wall quality on extrusion lines.
View specifications →
K 57 · Suspension
SIAMVIC® 258RB
Low K value for injection moulded fittings and connectors. Lower melt viscosity means easier flow and faster cycles.
View specifications →
K 71 · Suspension
SIAMVIC® 271PA
High K value for rigid and flexible pipe, fittings and connectors. A practical single grade for factories running several lines.
View specifications →
Typical values
SIAMVIC® 266RC
Polyvinyl chloride made by suspension polymerisation, processed by extrusion and injection. Its K value of 66 and tight particle size distribution give stable gelation and a clean surface finish on rigid extrusion lines.
These are average typical values measured on the resin and are not specifications. Actual specifications are provided in the quality certificate issued with each shipment. Only the version of the technical data sheet published on the official AGC Vinythai website is deemed valid. Safety data sheets are available on request.
| Characteristic | Unit | Standard | Value |
|---|---|---|---|
| Viscosity index | ml/g | ISO 1628-2 | 109 |
| K value (cyclohexanone) | — | ISO 1628-2 | 66 |
| Polymerisation degree | — | — | 1000 |
| Apparent bulk density | kg/l | ISO 60 | 0.570 |
| Volatile matter | % | ISO 1269 | ≤ 0.3 |
| Particle size, on 60 mesh (0.250 mm) | % | ISO 1624 | ≤ 2 |
| Particle size, on 230 mesh (0.063 mm) | % | ISO 1624 | ≥ 95 |
| Residual vinyl chloride monomer | ppm | ASTM D3749 | ≤ 1 |
Swipe the table sideways to see all columns.
Technical data sheets for 258RB and 271PA, and safety data sheets for any grade, are sent on request.
Downstream products
What our customers make with it.
Working with us
Why pipe manufacturers buy through Dunhill.
Genuine material
Direct from AGC Vinythai, Thailand, with a factory quality certificate on every shipment — not repacked or blended stock.
Batch consistency
Stable K value and particle size shift by shift, so your extruder settings hold and your output stays predictable.
Planned supply
Monthly allocation and shipment planning, so your line does not wait for material during peak construction season.
Grade selection support
TDS, COA and guidance on the correct grade for pressure class, wall thickness and processing method.
Full import handling
LC and UPAS LC documentation, shipping papers, port follow-up and delivery coordination.
Nationwide reach
We supply pipe manufacturers in Dhaka, Chattogram, Sylhet, Bogura, Gazipur and across all of Bangladesh.
