No. 350 petroleum asphalt felt paper waterproofing membrane for construction falls within the normal equipment range. Have you ever seen a No. 350 petroleum asphalt felt paper waterproofing membrane weighing 28.5 kg per roll? It is probably something you rarely see. Henan Yuecheng Waterproof Material Co., Ltd. can produce No. 350 petroleum asphalt felt paper waterproofing membranes in rolls of 25 kg, 28.5 kg, and 17 kg per roll.

High-Quality No. 350 Petroleum Asphalt Felt Paper Waterproofing Membrane    No. 350 Petroleum Asphalt Felt

Product Introduction:

Petroleum asphalt felt is a roll material made by impregnating the base paper with low-softening-point petroleum asphalt, then coating both sides with high-softening-point petroleum asphalt, and finally sprinkling anti-adhesive materials (such as talcum powder or mica flakes) on the surface. No. 350 petroleum asphalt felt is a paper-based waterproofing membrane.

It features excellent flexibility, aging resistance, strong tensile strength, long service life, simple construction, and low cost.

It is widely used for simple waterproofing, temporary building waterproofing, building moisture protection, packaging, as well as single-layer and multi-layer waterproofing for roofs, underground structures, and water conservancy projects.

Product Model:

1m * 20m

Product Usage

Used as a protective layer over the waterproofing layer. It is applied for waterproofing and moisture protection of roofs, basement walls, foundations, etc. Also known as asphalt felt.

Packaging

Paper packaging.

Petroleum asphalt felt is a type of waterproofing material.

It is a type of waterproofing material.

The storage period is generally one year from the date of production.

No. 350 petroleum asphalt felt paper is commonly known as asphalt felt. It is a waterproofing material used in the construction industry. The base paper has a loose texture, good oil absorption, and certain tensile strength. It is typically made from rags and waste paper, with higher grades possibly incorporating some animal hair and mineral wool, which are directly pulped and formed. During processing, the base paper is passed through molten asphalt, squeezed by hot rollers to saturate the paper layers with asphalt, excess asphalt is squeezed out, and the surface is sprinkled with talcum powder or mica flakes before cooling. It is less commonly used in projects today.

Asphalt felt, made with unmodified asphalt and paper as the base, refers to the traditional asphalt felt paper. Due to asphalt's properties of flowing at high temperatures and becoming brittle at low temperatures, the usable range of asphalt felt paper is very limited, and its lifespan is short. The paper base has low tensile strength and almost no elongation, so if the substrate deforms, the asphalt felt will also be damaged, failing to provide waterproofing. Therefore, this material can only be used as a protective layer, not as a waterproofing layer.

Why is No. 350 petroleum asphalt felt paper waterproofing membrane applied over the waterproofing membrane? This is because without it, the waterproofing membrane would be damaged, hence the need for No. 350 petroleum asphalt felt paper waterproofing membrane.

Why is No. 350 petroleum asphalt felt applied over the waterproofing membrane?

Because a protective layer is needed over the SBS membrane to prevent damage from debris. Some construction sites use plastic sheeting laid flat for the same reason. No. 350 refers to the model of the asphalt felt. "Point adhesion" likely means spot bonding, where the felt is locally bonded to the SBS membrane to prevent the felt from shifting due to wind or foot traffic. There are no specific standards for this construction method.