Sinks
A wide range of cast epoxy resin sinks, all with an integral flange for easy fitment from above or below a worksurface, and the same chemical resistance as our worksurfaces.
Simmons cast a wide range of epoxy resin sinks that can be fitted to a worksurface in several ways. All sinks have an integral flange to allow easy fitment whether fitted from above or below. Sinks are cast in the same epoxy resin used for our worksurfaces and share the same chemical resistance.
They are available in all of our standard colours. All sinks are designed to accept a 73 mm flange waste with a 1½″ BSP connection. A suitable polypropylene sink waste can be supplied in grey, white or black on request.
Three methods of fitment.
Every sink is moulded with an integral flange. How that flange meets the worksurface is the difference between the three methods. Waste outlet positions are fixed for each sink and listed in the tables.
Bonded and screwed to the underside of the worksurface through holes drilled in the flange, so the worksurface overhangs the bowl. Factory fitted to Simmons worksurfaces; if supplied loose, the flanges can be pre-drilled with fixing holes at additional cost.
Fitted from above into a rebated cut-out and bedded on silicone or epoxy, so the flange finishes virtually flush, about 0.3 mm below the worksurface. Self-supporting on the flange, so it suits any worksurface material; on laminate tops the flange covers the core.
Surface mounted on top of the worksurface over a suitable hole, with just the bowl dropping through. The flange sits on a layer of silicone or epoxy, with a radius fillet of grout to the joint.
Schematic sections. Cut-out sizes are on the individual sink drawings.
Choose a range.
Premier Select & standard
One sink, two fitments: the same moulding drops into a rebated cut-out or screws to the underside of the worksurface. Metric and Worldwide sizes, the standard undermount range, and the new M105 extra large sink.
View range →Drop-on
Surface mounted on top of the worksurface over a suitable hole, with just the bowl dropping through and a radius fillet of grout to the joint.
View range →
Troughs, drip cups and circular sinks
Troughs for fume cupboards and wet benches, drip cups for a single tap, circular sinks, and specials moulded to your drawing.
View range →Material specification.
Mechanical properties
| Tensile strength at break | 55 N/mm² |
|---|---|
| Tensile modulus | 8,753 N/mm² |
| Elongation at break | 1% |
| Flexural strength | 86.4 N/mm² |
| Flexural modulus | 9,473 N/mm² |
| Compressive strength | 149 N/mm² |
Mean of five specimens. Tensile to ISO 527-2:2012 and flexural to ISO 178:2019, both UKAS-accredited; compression to ISO 604:2003. Impact Solutions, Livingston, report IMP07237-LR, 30 March 2026.
Fire and decontamination
| Flame Spread Index | 10 · UL 723 |
|---|---|
| Smoke Developed Index | 350 · UL 723 |
| Surface-burning classification | Class A |
| Time to ignition | 198 seconds |
| Radioactive decontamination | 5598 · "Excellent" · BS 4247 Part 1 |
Surface burning tested to UL 723 at UL, Northbrook, Illinois, 15 September 2025, on 15 mm black material. Decontamination tested by IRAS to BS 4247 Part 1 Test A, certificate 227, 1992. Not for use with dry ice or liquid nitrogen.
Chemical resistance
24-hour spot test to SEFA 3-2020, 49 reagents, by SGS INTRON in March 2026: no detectable effect from 16 reagents, only a slight change in colour or gloss from 24 more, a clearly discernible change from eight, and one level 3 result, 96% sulphuric acid. The standard allows four level 3 results, so the material conforms. All 49 results.
Test results
- Chemical resistance to SEFA 3-2020, all 49 results (PDF)
- Simmons epoxy specifications, October 2026 (PDF)
The full test reports are available on request.
Five standard colours, one finish.
Every colour is cast with the same semi-gloss finish. Other colours are available to special order, and small material samples are free.
Colours shown are a guide only and cannot be guaranteed to match supplied components.
Request a quote for Sinks.
Send your drawings or requirements and our team will come back with a quotation. Need to see the finish first? Request a free sample.