Waterproofing Spray Equipment Heated Hose (JCH)

JCH waterproofing-equipment hose is the heated low-pressure line from our electrically heated range that the catalog assigns to waterproofing construction equipment and non-curing spray equipment. Its job is to carry the coating hot from the pump or melter to the spray gun and hold the temperature over the run, so a non-curing waterproofing coating reaches the surface at the viscosity it was mixed for. Maximum heat resistance is up to 230 °C (446 °F), higher temperatures are custom on request, and the catalog prints three bores for this product: 1/2", 5/8" and 3/4".

• Max heat resistance230 °C / 446 °F, higher on request
• Pressure classlow pressure, per-size table below
• Inner tubeB, TB, T or X build, 1/2"–3/4"
• Supply110 / 220 / 380 Vac, 12 Vdc
• SensorJ, K, Ni120, PT100, PT1000

Overview

The waterproofing calls I get are about spray quality, not about a hose that split. The crew is on a roof deck or a basement wall, the pump is running, and the spray pattern starts to break up – heavy in spots, thin in others, or the line goes stiff and the gun drags. Nobody changes the nozzle. What changed is that the coating arrived at the gun colder than it left the pump.

Non-curing waterproofing coatings are high-solids, and they do not get thinner in a cold line. As the product cools over the run, viscosity climbs, pump pressure climbs with it, and the atomisation at the nozzle goes from a fan to a spatter. On a waterproofing site the run can be twenty metres of hose lying on a cold deck in wind, with a crew stepping over it. That is a heat-tracing job, and it is what this build is for.

The heating elements are braided uniformly around the hose rather than wound as one strand, which keeps the temperature difference along the inner wall small; a single-strand winding leaves a warm side and a cool side, and the cool side is where the coating starts to thicken. High-insulation-efficiency materials are chosen with surface temperature in mind, so the outside of the hose stays reasonable to handle where the crew has to move it.

The catalog notes that Jingcheng has worked with leading companies in the waterproofing-equipment industry since 2013 and has gradually taken market share since, and that in harsh weather and harsh construction environments the hose is highly rated by customers for stability and durability. That matches what these sites ask for: a line that keeps its temperature through a winter pour and survives being coiled, dragged and stood on.

Where it is the wrong choice: this is a three-bore, low-pressure waterproofing line (1/2"–3/4"). If the job is crack sealant, the crack-sealing machine hose is the same table with a 1" bore added; for adhesive machines, sample lines or high-pressure extrusion ports, look at the hot-melt adhesive hose, heated sample line or special-industry heated hose instead.

Specifications

All values as printed in the Jingcheng 2025 electrically heated hose catalog.

Size and pressure table

All values as printed in the Jingcheng 2025 electrically heated hose catalog.

Full catalog: Heated hose catalog (PDF, 4.9 MB)

Materials and construction

• Inner tube: specified on the order form by model-code letter – B stainless corrugated tube, TB PTFE hose with stainless braid, T PTFE hose, X special material. The letter is not a catalogue ranking; it is the tube the fluid needs. For a non-curing waterproofing coating the fluid chemistry, the solids content and the cleaning method decide it, so tell us the product you are spraying.
• Heating layer: heating elements braided uniformly around the hose, which keeps the temperature difference along the inner wall small instead of leaving a hot stripe down one side.
• Sensor: a temperature sensor in the assembly, matched to your controller. Type J or K, Ni120, PT100 or PT1000, agreed on the drawing.
• Insulation and cover: high-insulation-efficiency material, selected with surface temperature in mind, under the braided outer cover visible in the photo.
• End fittings: a hose-end fitting at each end behind a metal collar, thread standard and size specified per end. The electrical leads exit at one end through protective sleeves, as in the photo.

Temperature and pressure notes

230 °C (446 °F) is the maximum heat resistance of this product; the catalog marks higher temperatures as custom, on request. A waterproofing line rarely runs anywhere near that. What matters is that the setpoint is above the temperature the coating needs at the gun, with enough margin that a cold wind over twenty metres of hose does not pull the far end under. Set the sensor so the controller reads the section near the gun, not only the pump end where the coating is already hottest.

Pressure is given per size in the table above: working pressure 118 bar at 1/2", 88 bar at 5/8" and 85 bar at 3/4", with burst pressure printed on the same row. A non-curing spray rig runs far below those figures, so on paper the table is a wide margin. What limits these lines in service is usually the bend, not the pressure: the catalog minimum bend radius is 150 mm at 1/2", 180 mm at 5/8" and 260 mm at 3/4".

Keep the ambient inside −40 to +55 °C (−40 to 131 °F) at 85 % relative humidity or less, and keep the surroundings free of gases that corrode metal or damage insulation, of conductive media and of severe mould; anything outside that is a custom build. Do not twist the hose laterally during or after installation – a twisted line pulls itself into a tighter bend when it warms up, and the catalog warns that bending tighter than the minimum can damage the hose.

Applications

The catalog application is waterproofing construction equipment and non-curing spray equipment. The settings we quote most:

• Waterproofing spray rigs – the heated run from the pump or melter to the spray gun, on roof decks and below-grade work
• Non-curing waterproofing coating equipment – high-solids coating held at temperature so it atomises properly at the nozzle
• Site lines that are coiled, moved and dragged between pours, in wind and cold, and must come back up to temperature quickly

The catalog also lists heated spray guns for waterproofing spraying – a 1.2 m gun and a short hand-held gun – made to order alongside the hose, so the line and the gun can be specified together rather than mated on site with adapters.

It is a low-pressure waterproofing line with three bores. For crack sealant, adhesive machines or a high-pressure connection, use the builds linked below.

Options and related builds

• The background: our article on the crack sealing hose covers the sibling heated construction hoses – construction, routing and how to specify one. This page is the product and its numbers; that one is the how and why.
• Before you specify: the heated hose specification checklist lists the inputs we need for a quotation, in the order we ask for them.
• Same family, same table: the crack-sealing machine hose is the road-maintenance build on the same T-STD rows, with a 1" bore. The hot-melt adhesive hose is the adhesive-machine build, down to 1/4".
• Sample lines: the heated sample line is the gas-sampling build in the same family, with smaller bores (3/16"–5/16").
• Other heated builds: browse the Heated Low Pressure Hose and Heated High Pressure Hose families.

How to order

A JCH part number carries the main choices, so the fastest way to order is to quote one. The catalog example is JCH-200-16-B-3X220-P2-8-N:

1. 200 – working temperature in °C. 200 means 200 °C.
2. 16 – inner tube bore in mm. 16 means Φ16 mm.
3. Inner tube letter – B is a stainless corrugated tube, TB is PTFE hose with stainless braid, T is a PTFE hose, X is a special material.
4. Supply – 220 means 220 V, 3X220 means three-phase four-wire 220 V.
5. Sensor code – P2 is PT100 two-wire, P3 is PT100 three-wire, K is type K, J is type J, W is no sensor, T is a special sensor.
6. Pressure – working pressure in MPa. 8 means 8 MPa.

The three catalog bores for this product are 1/2", 5/8" and 3/4" (catalog outside diameters 15.9, 19 and 22.6 mm); quote the size you need rather than the sample code above. If you do not have a part number, send these instead:

1. Bore and length, with the number of pieces, and the distance from pump or melter to the spray gun.
2. What is in the line: the waterproofing product, its solids content and the temperature it must be sprayed at.
3. The setpoint you run and the highest ambient the line sits in on site.
4. Pressure in the line and the pump rating.
5. Supply voltage and the controller or pump cabinet the line plugs into.
6. Sensor type and wiring, if the cabinet dictates it, plus the pin table if one exists.
7. End fittings at each end: thread standard, size, angle, with a photo or part number if you have one.
8. The route – coiled on a deck, dragged over a membrane, hung – and the tightest bend on it.

If a drawing exists, send it. We propose the specification against it, you confirm it with the quotation, and production follows the confirmed specification.

Frequently asked questions

What is a waterproofing spray equipment heated hose?

An electrically heated, insulated hose that carries waterproofing coating from the pump or melter to the spray gun without letting it cool enough to thicken. It is a heated inner hose, a braided heating layer over it, insulation, a braided outer cover, a metal collar and fitting at each end, and an electrical lead at one end.

What temperature does it run at?

Maximum heat resistance is up to 230 °C (446 °F), with higher temperatures custom on request. Order the setpoint your coating needs at the gun, not the maximum of the hose – the catalog figure is a ceiling, not a working temperature.

Which bore do I need?

The catalog prints three for this product: 1/2", 5/8" and 3/4". The choice is usually driven by the pump output and the gun orifice on your rig. Send the equipment model or the size of the hose you are replacing and we will match the bore to it.

Will it survive a winter pour on a roof deck?

The outdoor ambient envelope is −40 to +55 °C (−40 to 131 °F), and the catalog highlights stability and durability in harsh weather and harsh construction environments. It is still a hose with a minimum bend radius: route the run so no point goes tighter than the catalog minimum bend radius for your bore (150 mm at 1/2", 180 mm at 5/8", 260 mm at 3/4"), and support the coil rather than letting it hang on the collar.

Can I use my existing pump controller?

Yes, if we know its sensor input and output type before the build. The catalog lists type J and type K thermocouples, Ni120, PT100 and PT1000 sensors, with PID control and SSR or thyristor output. Send the controller model or a photo of its label and the wiring is matched to it.

Is the line supplied with the fittings?

Yes. Both ends are specified separately on the order – US, British or metric threads, or another type – and made to order, so the line arrives ready to connect to your pump and your gun rather than needing adapters on site.

Source: Jingcheng 2025 electrically heated hose catalog, p.8 waterproofing-equipment hose and p.4 order form and model code, and our published business policies.