Product Overview

SLETU-902 is a three-component epoxy repair mortar comprising Part A epoxy resin, Part B polyamide curing agent and Part C hard mineral aggregate, mixed on site. Once cured it forms a high-strength, water-resistant rigid repair matrix used for filling and levelling concrete potholes, honeycombing, defects, shallow cracks and level differences. The repair layer anchors strongly to the original concrete and provides a flat, firm base for SLETU-901 primer, SLETU-101 underwater coating and SLEME anti-slip elastic sheets.

This technical data sheet is compiled in accordance with ASTM epoxy repair material standards, EN 1504-3, ISO 14801, EU REACH, RoHS 2.0 and ISO 11014. It addresses common engineering problems on cementitious substrates such as potholes, chipped corners, depressions, honeycombing and locally insufficient strength.

1. Product Identification

2. Key Features

2.1 Three-component epoxy system, high-strength repair — Epoxy with polyamide curing and hard mineral aggregate gives high compressive and bond strength after cure. The repair layer is firm and abrasion resistant and resists cracking.

2.2 Applicable to damp substrates — The polyamide-cured epoxy system allows application on damp substrates free of standing water, suited to pool and water park sites that cannot be fully dried.

2.3 Water and chlorine resistant for long-term water contact — The cured repair layer resists water and pool chlorinated disinfectant attack and performs stably under alternating wet and dry conditions without dissolving or softening.

2.4 High-strength anchoring to existing concrete — Bonds firmly to the existing cementitious substrate and has good interfacial compatibility with SLETU-901 high penetration epoxy primer, ensuring adhesion of subsequent topcoats.

2.5 Adjustable working consistency — The aggregate grading allows slight adjustment of mixing consistency, suitable for pothole filling, defect repair and thin-layer levelling.

2.6 Low shrinkage, resists cracking — Low volumetric shrinkage on cure, so micro-cracks are unlikely after repair, preserving substrate integrity.

2.7 Environmentally safe and compliant — Low leaching after cure, meeting material safety requirements for water-contact structures; compliant with EU REACH and RoHS 2.0.

2.8 Full OiCE system compatibility — A system repair material used together with SLETU primer, underwater coating and SLEME elastic sheet installation systems.

3. Technical Data (ASTM / EN)

All values are tested on the fully cured mortar as a whole, in line with third-party testing standards for European and North American public water-contact facilities. Bond strength, compressive strength, immersion resistance and environmental indices meet overseas pool and aquarium admission requirements.

4. Application Instructions (for water-contact works)

4.1 Substrate preparation — The substrate must be sound. Remove loose sand, oil, moss, loose or broken concrete and aged coatings. At potholes and defects, chisel out loose material back to sound substrate; at cracks, widen and clean the crack. The substrate may be damp but must be free of standing or pooled water.

4.2 Application conditions — Ambient temperature 10–35 °C; substrate temperature at least 3 °C above dew point; relative humidity ≤ 85 %. Do not apply in rainstorms or frost.

4.3 Repair procedure
4.3.1 Mix Part A resin and Part B curing agent at the specified ratio and stir thoroughly, then add Part C mineral aggregate and continue mixing until the aggregate is fully wetted. The mix must be used within the pot life; material beyond that time must not be used.
4.3.2 Fill potholes and defects in layers; a single thick layer should not exceed 20 mm. Control thickness for large-area thin-layer levelling. Finish the repair surface flat and smooth.
4.3.3 After repair, cure at ambient temperature. SLETU-901 high penetration epoxy primer may only be applied once the repair mortar is fully cured and ground flat.
4.3.4 Curing: light touch after 24 h at ambient temperature; final strength after full 7-day cure. Avoid water exposure, water scouring and heavy impact during curing.
4.3.5 Recommended system — Substrate chipping and cleaning → SLETU-902 epoxy mortar pothole and defect repair and levelling → curing and grinding → SLETU-901 high penetration epoxy primer → SLETU-101 topcoat or SLEME elastic sheet installation.

5. Packaging and Storage

5.1 Packaging — Parts A and B are supplied in separately sealed steel pails; Part C aggregate is bagged. Each set is marked with model, batch, mixing ratio and net weight, and is supplied with a product certificate and safety data sheet.

5.2 Storage — Store indoors in a cool, ventilated place at 10–30 °C, away from open flames, heat sources and oxidisers, protected from light. Store Parts A, B and C separately and keep sealed to prevent damp ingress. Factory-sealed shelf life 12 months.

5.3 Transport — Transport protected from light and rain, avoiding prolonged sun exposure and high temperature. Follow chemical transport regulations and avoid impact damage.

6. Safety and Environment

6.1 A Safety Data Sheet compliant with ISO 11014 / GHS is supplied, meeting export audit requirements for European and North American water park, pool and aquarium projects.

6.2 Safety characteristics — Parts A and B liquid components are irritant before cure. Keep the work area well ventilated. Operators must wear safety goggles, a half-face respirator, solvent-resistant gloves and protective clothing. Avoid direct skin and eye contact and never ingest. Take dust precautions when handling the aggregate.

6.3 Environmental compliance — Low leaching after cure, meeting material safety standards for water-contact structures. Compliant with EU REACH and RoHS 2.0, free of heavy-metal pigments.

6.4 Waste disposal — Uncured residue, empty packaging and construction waste must be disposed of in accordance with local hazardous chemical regulations and must never be discharged directly into water bodies.

7. Warranty and Disclaimer

The cured mortar matrix is designed for a service life of not less than 10 years. As a system component, projects where our company acts as general contractor or authorises overall system installation carry a 3-year system warranty; product storage shelf life is 12 months. All data in this document is derived from laboratory testing and field measurement on domestic and overseas water park, pool and aquarium projects and represents typical performance values. Actual results depend on substrate condition, substrate preparation, application workmanship, layered repair thickness, curing conditions, topcoat system selection and water chlorine content. Before bulk application, users must carry out on-site trial mixing to verify bond strength, curing performance and substrate compatibility. The manufacturer reserves the right to optimise and update technical parameters. This document is for technical reference only and does not constitute a legally binding warranty contract.

Brand: OiCE Enjoycool / SLETU Shui Le Tu
Manufacturer: Enjoycool Technology (Hong Kong) Limited
R&D and manufacturing base: Guangzhou, China
Document version: V1.0 ｜ 2026-10-12