ResinTech RT125 is the industry-standard two-component epoxy adhesive for high-performance cable harness assemblies. It produces a flexible, fluid-resistant bond between moulded heat shrink boots, connectors, and backshells — the same role filled by HellermannTyton V9500 and Raychem S1125, to the same performance standard.
RT125-DS-050 is the 50ml black DuoSyringe in the industry-standard 1:1 dual-barrel format. It loads directly into the V9500 Applicator Gun and dispenses through the V9500 static mixing nozzle — so if you already own the V9500 gun and nozzles, RT125 is a drop-in cartridge with no new tooling required.
V9500 alternative. HellermannTyton V9500 is on restricted supply for the next 2–3 months. ResinTech RT125 is the direct functional equivalent. Same 1:1 ratio, same −75 °C to +150 °C range, same 2-hour cure at +85 °C, same gun and nozzles.
Specifications
| Property | Value |
|---|---|
| Part No. | RT125-DS-050 |
| Brand | ResinTech (United Kingdom) |
| Colour | Black |
| Volume | 50ml DuoSyringe (1:1 dual barrel) |
| Mix ratio | 1:1 |
| Working life | 90 min at +23 °C |
| Time to handling | 24 hrs at +23 °C |
| Full cure | 7 days at +23 °C / 2 hrs at +85 °C |
| Operating temp | −75 °C to +150 °C |
| Peel strength (after 4 h at +215 °C) | 370 N / 25 mm |
| Sealing | IP68, continuous immersion |
| Equivalent to | HellermannTyton V9500 (627-95002), Raychem S1125 |
Properties
- Flexible bond — high shear and peel strength; withstands flex and vibration without cracking
- Outstanding chemical and fluid resistance — fuels, oils, hydraulic fluid, and cleaning agents at elevated temperature
- Bonds common cable jacket materials: PE, XLPE, PVC, neoprene, urethane, silicone, and LFH composites
- Also bonds metals, glass, rubber, and many plastics
- IP68 sealing for continuous-immersion applications
- Industry-standard 50ml 1:1 format — works with the V9500 applicator gun and any compatible 50ml dual-barrel gun
When RT125 Epoxy is Required
Moulded heat shrink boots are not adhesive-lined as standard. RT125 (like V9500) is required to produce a sealed, pull-resistant system between the boot and the connector backshell:
| Boot type | Epoxy requirement |
|---|---|
| T-shape (Raychem 322A / HellermannTyton 1209-1-G) | Mandatory — no mechanical retention without epoxy |
| Y-shape (Raychem 382A / 462A) | Mandatory |
| 90° lipped boots | Strongly recommended for IP67/IP68 |
| Straight lipped boots | Strongly recommended for IP67/IP68 |
See the full Heat Shrink Boots range for boot-to-connector compatibility.
Dispensing
For repeated use across multiple connectors, load the syringe into the V9500 Applicator Gun and fit a V9500 static mixing nozzle. The gun delivers metered 1:1 mixed epoxy directly into the boot entry port — no manual measuring, no ratio errors. Discard the nozzle after each session; the syringe re-caps and remains usable between sessions.
For a single connector repair, the DuoSyringe can also be applied by hand through a mixing nozzle without the gun.
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