Silicone vs Rubber vs PVC vs PTFE: Choosing Hose for Bulk Orders

Four materials cover very nearly everything a trade counter sells: silicone, rubber, PVC and PTFE. They overlap enough that a buyer can substitute one for another and get away with it for a while – and differ enough that the substitution eventually costs somebody an engine, a pump or a morning. For anyone placing a bulk order, the question is not which material is best. It is which material each duty actually requires, and how much of each to hold.

This guide sets the four side by side on the specifications that decide the sale — temperature range, reinforcement, standards and format — then covers how to translate that into a stock order that turns over rather than sits.

The Four Materials at a Glance

Every line we hold carries a 3:1 safety factor, so in each case specify against the working figures below rather than the burst pressure. The full hose range covers all four families.

Matching Material to Duty

Most specification errors happen because somebody chose on habit rather than on fluid. Four duties account for the overwhelming majority of trade demand:

Where Silicone Earns Its Premium

Silicone costs more per metre than EPDM rubber, and a buyer looking only at the line price will substitute every time. The argument for silicone is service life at temperature. Rubber radiator hose is rated to +125°C with a +145°C peak, which is fine until a cooling system runs hot, a fan fails, or the hose spends five summers under a bonnet. Multi-ply silicone to SAE J20R3 sits at +250°C peak and does not harden, craze or collapse internally the way an aged rubber hose does. On a fleet or a plant contract, one avoided roadside failure covers the difference across the whole order.

The counter-argument is equally real: for straightforward like-for-like OEM replacement on older machinery, rubber is the right part at the right price, and customers will not thank you for upselling them. Stock both. They are different sales.

Where PVC Stops and PTFE Starts

PVC is the cheapest per metre and the widest-selling of the four, but its ceiling is low: +65°C, +70°C short-term. That is a water, air and mild-chemical material, not a hot or aggressive one. The PVC hose lines run from 5mm bore pole hose up to 51x65mm wire-reinforced suction, and for workshop air, washdown, irrigation and dewatering they are unbeatable on cost.

At the other end, PTFE lined hose is the specialist line: a seamless smooth PTFE bore with an SS304 stainless overbraid, rated –56°C to +204°C with a +210°C peak, and effectively inert to solvents, fuels, hydraulic fluids and steam. It is the most expensive metre in the catalogue and the one your customer cannot source at a builders' merchant, which makes it a margin line rather than a volume line. A modest holding in the common bores tends to pay for itself.

Reading the Spec Sheet

The working figures for the core lines, as they appear on the product pages:

Specifying a Bulk Order – Step by Step

Buying Across Four Materials

A single-material stockholding is easy to manage and loses sales. A four-material holding wins the sales and ties up cash if you buy it badly. The middle ground looks like this:

Ordering from Hoses UK

Hoses UK is a trade-only wholesale distributor, so pricing is built for volume rather than one-off retail. The minimum order is £500 excluding VAT, and every order is settled before dispatch — there is no credit application to wait on and no credit check to pass, which is precisely what lets us price sharper and hold deeper. Core lines across all four materials ship on express next-day delivery, with same-day collection from our Mirfield warehouse. For stockists building an own-brand range, custom-branded and bespoke hose is available alongside the standard catalogue.

Frequently Asked Questions