JX200 SBS Elastomer Modified Asphalt Waterproofing Membrane is a roll‑type sheet waterproofing material. It uses SBS thermoplastic elastomer‑modified asphalt as the impregnating and coating compound, with polyester felt, glass‑fiber felt, or glass‑fiber‑reinforced polyester felt as the carrier substrate. The top surface is protected by PE film, fine sand, or mineral granules.

Scope of Application

‑Waterproofing for roofs of industrial & civil buildings; ‑Waterproofing & moisture‑proofing for underground structures, swimming pools, fire‑water pools; ‑Municipal waterproofing for subways, tunnels, bridge decks with concrete pavement; ‑Waterproofing for hydraulic facilities such as canals and pools.

Product Specifications

Carrier types: Polyester (PY), Glass-fiber (G), Glass-fiber reinforced polyester (PYG) Performance Grade: Type Ⅰ, Type Ⅱ

Performance Standard

《Elastomer‑Modified Asphalt Waterproofing Membrane》 GB18242‑2008

Product Features

‑Composite of high‑performance long‑strand polyester carrier and SBS‑modified asphalt delivers outstanding comprehensive performance; ‑Forms high‑strength waterproof layer with excellent hydrostatic‑pressure resistance; ‑High tensile strength & large elongation, good adaptability to substrate shrinkage,deformation and cracking; ‑Superior thermal resistance, suitable for both hot and cold climates, especially cold zones; ‑Good puncture‑resistance, crush‑resistance, tear‑resistance and fatigue‑resistance; ‑Excellent corrosion‑resistance, mildew‑resistance and weather‑resistance; ‑Good workability. Hot‑melt bonding is applicable all year‑round with durable reliable hot‑weld joints.

Construction Process

Substrate Preparation ➔ Primer Application ➔ Detail‑joint Treatment ➔ Layout Marking ➔ Membrane Laying ➔ Joint Treatment ➔ End‑Termination Treatment ➔ Self‑inspection & Acceptance ➔ Hand‑over

Construction Method

Hot‑melt Construction Procedure for Modified Asphalt Membrane

1. Prime substrate evenly with long‑handle roller; avoid missing spots or bare substrate.

2. Install reinforcement sheets at corners, internal / external angles and other detailed joints.

3. Mark layout lines on dry prepared substrate. Reserve 100mm overlap width for both at both long‑side and short‑side joints.

4. Fix the starting end; heat roll surface reciprocally with blowtorch (15‑30mm distance). Do not over‑heat at one spot to prevent carrier exposure or delamination. When bottom asphalt turns glossy‑black with tiny bubbles, unroll and press membrane tightly to expel air.

5. Heat overlap joints fully until molten asphalt (approx.8mm bead) squeezes out from joint edge for tight waterproof sealing.

6. Termination fixing on vertical surfaces (parapets, vent outlets, etc.): Fasten the membrane end with galvanized metal pressure bars and corrosion‑resistant screws; use metal hoops for circular structures. Seal with asphalt sealant. The termination height shall be ≥250 mm.

Transportation & Storage

Store different types & specifications separately. Keep well‑ventilated, avoid direct sunlight and rain. Storage temperature ≤50℃. Only single‑layer for vertical storage; maximum two vertical layers during the transportation. Prevent tilting and crushing; cover with tarpaulin if needed. Shelf‑life is 1 year from production date under proper conditions.