Product Overview

SLETU-903 is a two-component elastic epoxy adhesive: a modified epoxy resin base cured with a polyamide curing agent and blended with elastic modification components. Once cured it combines the high bond strength of epoxy with elastic deformation capacity, absorbing minor substrate movement, relieving stress from temperature and wet-dry cycling and reducing the risk of debonding of elastic tiles and sheets. The adhesive layer resists water and pool chlorinated water attack and can be applied to damp substrates free of standing water.

It is used to bond SLEME elastic sheets and tiles firmly to pre-treated cementitious substrates and, together with SLETU-902 epoxy repair mortar and SLETU-901 high penetration epoxy primer, forms a complete water-contact paving system. It addresses the common failures of other adhesives: brittleness, softening under immersion and delamination or cracking under wet-dry cycling.

1. Product Identification

2. Key Features

2.1 Modified epoxy elastic system, high bond strength with deformation capacity — The epoxy base ensures high bond strength while the elastic modification components give the adhesive layer a degree of ductility, accommodating minor expansion and contraction of the substrate and reducing the risk of debonding and edge lifting.

2.2 Applicable to damp substrates free of standing water — The polyamide-cured epoxy system suits the damp substrate conditions typical of water-contact projects, with no need to wait for the substrate to dry completely.

2.3 Water and chlorine resistant, stable under long-term immersion — The cured adhesive layer withstands pool chlorinated disinfectant and alternating wet and dry conditions without softening, swelling or degrading under long-term immersion.

2.4 Excellent compatibility with SLEME elastic sheets and tiles — Does not attack elastic paving materials. The adhesive layer keys tightly to the back of the sheet, compatible with the complete SLEME water-contact system.

2.5 Low shrinkage, reducing hollowing and edge lifting — Low cure shrinkage means thin-bed application generates little internal stress, reducing the risk of sheet corners lifting.

2.6 High thixotropy, slip resistant — The thixotropic formulation resists sagging on vertical faces and slopes, so tiles and sheets do not slide or shift after placement.

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

2.8 System compatibility — Together with SLETU-902 repair mortar, SLETU-901 primer and SLEME elastic sheets it forms an integrated water-contact paving system.

3. Technical Data (ASTM / EN)

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

4. Application Instructions (for water-contact elastic paving)

4.1 Substrate preparation — The substrate must be sound and firm. First level potholes and defects with SLETU-902 repair mortar, then apply SLETU-901 high penetration epoxy primer. Remove loose sand, oil, moss and loose inclusions. A damp substrate is acceptable but standing or pooled water is strictly prohibited.

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 Bonding procedure
4.3.1 Mix Part A modified epoxy elastic resin and Part B polyamide curing agent at the specified ratio and stir thoroughly. The material must be used within the pot life; mixed material beyond that time must not be used.
4.3.2 Spread the adhesive evenly onto the pre-treated substrate using a notched trowel, keeping the adhesive layer thickness uniform.
4.3.3 Lay the SLEME elastic sheet or tile and roll thoroughly with a rubber pressure roller to expel air from the adhesive layer, ensuring full bonding with no hollows. Clean any adhesive squeezed out at the sheet edges promptly.
4.3.4 At internal and external corners, ramps, drains and equipment plinths, ensure the adhesive layer is continuous and complete.
4.3.5 Curing: light loading permitted after 24 h at ambient temperature; final bond strength and water resistance after a full 7-day cure. No water immersion, foot traffic or water scouring during curing.
4.3.6 Recommended system — Substrate grinding and cleaning → SLETU-902 epoxy mortar repair and levelling → SLETU-901 high penetration epoxy primer → SLETU-903 elastic tile adhesive trowel application → SLEME elastic sheet or tile installation → static curing.

5. Packaging and Storage

5.1 Packaging — Parts A and B are supplied in separately sealed steel pails. Each pail 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 and B 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 — This is a two-component paste material that is 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.

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 adhesive layer 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 paving 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, notched trowel selection, adhesive layer thickness, curing conditions and water chlorine content. Before bulk application, users must carry out on-site sample bonding to verify bond performance, elastic compatibility 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