Product Center Waterproof Membrane

APP Modified Bitumen Waterproof Membrane

This product is a waterproof material with a coating layer of atactic polypropylene (APP) modified bitumen, reinforced with a polyester or fiberglass base, and covered with polyethylene (PE) film, fine sand (S), or mineral granules (M) as release materials. APP modification provides excellent high-temperature performance and aging resistance, making it especially suitable for high-temperature regions and exposed waterproofing applications.

Product Features

Feature	Description
High Temperature Resistance	Excellent resistance to high temperatures, does not melt or flow.
Anti-Aging	Strong UV resistance, suitable for exposed applications.
Puncture Resistance	High strength with superior tear and puncture resistance.
Easy Application	Hot-melt construction ensures reliable adhesion and tight seams.
Long Service Life	Corrosion-resistant, highly durable, with long-lasting performance.

Standards

Standard	Description
GB 18243-2008	Plastomeric Modified Bitumen Waterproof Membrane.

Applications

Area	Description
Industrial & Civil Buildings	Roofs, basements, bridges, tunnels, and other waterproofing projects.
Special Uses	Especially suitable for high-temperature regions, exposed roofs, and critical waterproofing structures.

Construction Process

Step	Description
Substrate Preparation	Ensure the base is smooth, solid, clean, and dry.
Additional Layer	Apply additional reinforcement layers at key nodes.
Hot-Melt Application	Use a flame torch to evenly heat the membrane underside and substrate until the asphalt melts, then roll and press to adhere.
Overlap Treatment	Overlap at least 100 mm on long sides and 150 mm on short sides; seal seams by hot-melting.
Inspection & Acceptance	Check for surface flatness and overlap quality after installation.

Product Specifications

Item	Specification
Type	Type I, Type II
Thickness	3.0 mm, 4.0 mm
Area	10 m²/roll
Reinforcement	Polyester (PY), Fiberglass (G)
Top Surface	Polyethylene Film (PE), Fine Sand (S), Mineral Granules (M)

Transportation & Storage

Item	Description
Storage Conditions	Store different types and specifications separately. Avoid direct sunlight and rain; ensure good ventilation.
Temperature	Storage temperature ≤ 50 ℃. Store upright in a single layer. During transportation, avoid impact or heavy pressure; upright stacking should not exceed two layers.
Shelf Life	At least one year from production under normal storage and transport conditions.

Precautions

Item	Description
Base Moisture	Base moisture content should not exceed 9%.
Construction Temperature	Apply using liquefied gas or ethanol flame for hot-melt bonding within 4 ℃–60 ℃. Material surface temperature during hot-melt should not exceed 200 ℃.
Fire Safety	Take fire precautions during hot-melt application and keep fire-fighting equipment on site.
Finished Product Protection	For non-exposed applications, apply a protective layer within one week after completion.