ASLONG ProSeal Waterproof Insulation Composite Tape — Durable, Weatherproof Seal & Sound Dampening

ASLONG ProSeal is a High Quality waterproof insulation composite tape designed to create airtight, watertight seals while improving thermal and acoustic performance — a single, easy-to-install solution for leaks, drafts, and noise problems in buildings, vehicles, and equipment.

Core Advantages

Watertight and Weather-Resistant Protection

ProSeal combines a durable outer film with a flexible adhesive core to form an immediate barrier against rain, moisture, and condensation. It shrugs off UV exposure and temperature swings so seals remain intact on roofs, window frames, and external joints — preventing water damage before repairs are needed.

Reliable Adhesion that Lasts

The tape bonds firmly to metal, glass, plastic, painted surfaces, and many composites, delivering a long-lasting hold without messy solvents. Its conformable backing adapts to irregular surfaces and corners, so you get consistent contact and fewer reworks on installation day.

Acoustic and Thermal Benefits

Beyond waterproofing, ProSeal reduces vibration transfer and helps block drafts that drive heating and cooling costs. When combined with ASLONG sound insulation materials, it contributes to quieter rooms, more comfortable cabins, and better energy efficiency for homes and vehicles.

Unique Features

Composite Multi-Layer Design

ProSeal’s layered construction merges an outer protective film, a dense insulating middle, and an aggressive pressure-sensitive adhesive. The result is a tape that seals, cushions, and insulates in one easy application — ideal where time and reliability matter.

Easy Application for Pros and DIY

Cut to length, peel, press. No primers, no special tools. The tape is forgiving for adjustments during positioning and can be overlapped for extra insurance on seams and corners.

Environmentally Minded Manufacturing

Produced by ASLONG with a focus on efficient, environmentally friendly processes, ProSeal aligns with modern building and automotive standards where durability and sustainability go hand in hand.

Application Scenarios

Construction and Roofing

Perfect for flashing, skylights, window perimeters, parapet seams, and HVAC transitions — ProSeal seals gaps that cause leaks and energy loss, extending the lifetime of assemblies.

Automotive, Marine, and Industrial Use

Use it for door sills, trunk seams, cargo bays, and equipment housings to stop water intrusion, dampen road and engine noise, and reduce panel vibration without complex retrofits.

Trusted Manufacturer Backing

ASLONG (Welllink Guangdong New Material Co., Ltd.), founded in 2000, is a high-tech enterprise specializing in acoustic and sound insulation materials with a modern production base of more than 10,000 square meters. ASLONG exports products like butyl waterproof tape, sound damping mats, mass loaded vinyl, and NBR foam to Europe, North America, Asia, and Africa. With decades of R&D and global project experience, ASLONG provides reliable, high-performance solutions and is recruiting agents worldwide. Learn more at https://www.aslong.cc or contact king@aslong.cc.

1. Excellent quality

   ASLONG strictly follows international quality standards, and all products are strictly tested to ensure that their performance and quality reach the industry-leading level.

2. We have a modern production base of more than 10,000 square meters.

3. Complete after-sales service

   We provide comprehensive after-sales guarantee, including regular return visits, troubleshooting and repair services. Whether you encounter any problems during the use of the product or need technical updates, our after-sales team will respond in a timely manner to ensure that customers experience consistent high-quality services.

4. Innovative technology

   We continue to innovate, keep up with the development trend of the global acoustic materials field, and constantly introduce new products to meet the needs of different industries.

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  Dust-proof structure for internal mixer operation