Silicone and Tygon Tubing Singapore: Selection Guide for Labs
From peristaltic pump lines that meter media drop by drop, to transfer tubing that carries buffer between vessels, flexible tubing is one of the most quietly critical consumables in any laboratory. Choose the wrong material and you risk leaching, swelling, kinking or a line that fails mid-experiment.
At JW RESEARCH SUPPLY, we supply Singapore laboratories with platinum-cured silicone tubing and Tygon tubing across a full range of bore sizes, cut to length or supplied in rolls. This guide compares the main materials, explains sizing, and helps you match tubing to your application.
Tubing Materials Compared
| Material | Durometer (Shore A) | Temperature Range | Chemical Resistance | Best For |
|---|---|---|---|---|
| Platinum-cured silicone | 50 | -60 to 200°C | Water, media, mild acids/bases; poor with solvents | Peristaltic pumps, cell culture, food & beverage |
| Tygon E-3603 (general purpose) | 55 | -45 to 74°C | Broad, low extractables | General lab transfer, acids & alkalis (dilute) |
| Tygon F-4040 (solvent resistant) | 57 | -18 to 74°C | Hydrocarbons, fuels, many solvents | Organic solvent transfer |
| PTFE / FEP lined | — (rigid) | -70 to 200°C+ | Near universal | Aggressive chemicals, high purity |
Common Tubing Sizes and Typical Uses
| Inner Diameter (ID) | Wall Thickness | Typical Application |
|---|---|---|
| 0.8 mm | 1.6 mm | Micro-peristaltic pumps, low-flow dosing |
| 1.6 mm | 1.6 mm | Standard pump tubing, chromatography lines |
| 3.2 mm | 1.6 mm | Media transfer, general benchtop use |
| 4.8 mm | 1.6 mm | Culture media filling, higher flow pumps |
| 6.4 mm | 3.2 mm | Bulk transfer, fermenter feed lines |
| 9.6 mm | 3.2 mm | Large-volume harvesting, water systems |
Silicone Tubing for Peristaltic Pumps
Silicone dominates peristaltic pump applications because it recovers its shape quickly after compression, giving consistent flow and long tube life. Platinum-cured silicone is the grade to specify for biological work: it contains no peroxides or plasticisers, so nothing leaches into your media or culture.
- Flow accuracy — Replace pump tubing on a set schedule; stretched or fatigued tubing changes the internal bore and silently shifts flow rates.
- Wet before pumping — A dry silicone tube grips the rotor differently; prime the line once before critical runs.
- Avoid sharp bends — Keep the bend radius generous at the pump inlet to prevent kinking and cavitation.
Tygon or Silicone: How to Decide
Ask three questions. First, what are you moving? Biological fluids, culture media and pharmaceutical intermediates suit silicone. Anything with solvents, oils or aggressive chemicals points to Tygon F-4040 or PTFE-lined tubing. Second, what temperature? Silicone handles autoclaving and hot lines far beyond Tygon's 74°C continuous limit. Third, how hard will the pump work it? Softer silicone gives better pump life; firmer Tygon resists abrasion and pressure better in static lines.
Why Choose JWRESEARCH for Tubing in Singapore?
- Full size range — Silicone and Tygon tubing from 0.8 mm to 9.6 mm ID, cut to length or by the roll.
- Certified grades — Platinum-cured, food-grade and USP Class VI silicone options for regulated work.
- Chemical guidance — We help you confirm material compatibility before you buy.
- Bulk pricing — Roll quantities for bioprocess facilities, institutes and OEM users.
- Fast local delivery — Rapid dispatch across Singapore keeps your pumps running.
JWRESEARCH supplies platinum-cured silicone and Tygon tubing to Singapore biotech, pharmaceutical, food and academic laboratories. Contact us for sizing advice and quotations.
📞 +65 8039 3660 | ✉️ SINGAPORE@JWSHY.COM
🌐 www.jwresearch.cn
Frequently Asked Questions
Q: What is the difference between silicone and Tygon tubing?
Silicone tubing is soft, flexible and biocompatible, making it the default choice for peristaltic pumps, cell culture and media transfer, but it is not recommended for strong acids, solvents or oils. Tygon is a family of formulated plastic tubing: general-purpose Tygon E-3603 offers broad chemical resistance and low extractables at moderate cost, while solvent-resistant formulations such as Tygon F-4040 handle hydrocarbons. In short, choose silicone for gentle, biological or food-contact work, and Tygon for chemical resistance or when you need a stiffer, more durable line.
Q: Can silicone tubing be autoclaved and reused?
Yes. Platinum-cured silicone tubing is repeatedly autoclavable at 121°C (15 psi) for 20-30 minutes and remains stable at continuous service temperatures up to about 200°C and intermittent exposure to 220°C. Autoclaving is the standard way to sterilise silicone lines between culture runs. Check the durometer and cure type first — peroxide-cured silicone can leave extractable residues, so platinum-cured grades are preferred for bioprocess and pharmaceutical work. Inspect tubing regularly and replace it once it becomes cloudy, cracked or permanently compressed.
Q: How do I choose the right tubing size for a peristaltic pump?
Select the tube so the pump rotor compresses the tubing wall by roughly 15-25% for a good seal without over-stressing the material. Match the inner diameter (ID) to the flow rate you need — larger IDs deliver higher flow at the same pump speed — and keep the wall thickness within the range specified by the pump head manufacturer, typically 1.6 mm for standard silicone pump tubing. Most pump heads accept tubing with an ID between 0.8 mm and 9.6 mm; use a flow-rate chart from the pump supplier to confirm the ID and speed combination before buying.
Q: Which tubing is safe for organic solvents and strong acids?
Neither standard silicone nor general-purpose Tygon E-3603 is suitable for strong acids, ketones or hydrocarbons. For aggressive organic solvents use solvent-resistant Tygon F-4040 or tubing made from PTFE, PFA or FEP, which resist almost the full range of chemicals. For concentrated acids and bases, PTFE-lined or peristaltic tubing certified for chemical duty is the safest option. Always confirm compatibility against a chemical resistance chart at your actual operating temperature, because resistance falls as temperature rises.