PN（BW）止水條是由高分子、無機吸水膨脹材料與橡膠及助劑合成的具有自粘性能的一種新型建筑防水材料。遇水能吸水體積膨脹，擠密新老混凝土之間的縫隙，形成不透水的的可塑性膠體。該產品與一九八八年六月在北京通過部級鑒定，榮獲一九九一年國家科技成果獎，并頒發(fā)證書成為國家認可的合格產品。該產品為解決混凝土施工縫的滲漏問題了新路，填補了我水材料的一項空白。產品質量達到 了世界水平。
PN (BW) stop bar is a new type of building waterproof material, which is made of macromolecule, inorganic water swelling material, rubber and auxiliaries. When the water can absorb water, the volume expands and the gap between the old and new concrete is squeezed to form an impermeable plastic colloid. In 1988 June, the product passed the ministerial appraisal in Beijing, and won the national science and technology achievement award in 1991, and issued a certificate to become a qualified product approved by the state. This product has opened a new way to solve the seepage problem of concrete construction joint, and has filled a blank of waterproof material in our country. Product quality has reached the world's leading level.
一、性能特點：
I. performance characteristics:
該 產品呈灰黑色膩子狀膠體，具有耐氣候好、抗老性、防滲止漏、耐腐蝕、操作簡便、費用低等特點。
The product was gray putty colloid, has the advantages of good weather, anti-aging, anti leakage, corrosion resistance, simple operation and low cost features.
二、技術指標：
Two, technical indicators:
三、主要用途：
Three, the main use:
PN（BW）止水條是各種地下建筑構筑工程、水利工程、交通隧道工程、電廠冷卻塔、市政給排水等砼砌混凝土工程施工縫防止漏的一種新、理想的材料，價格僅是橡膠止水帶的四分之一、鋼板止水帶的五分之一，解決了橡膠和鋼板止水帶靠磨擦易產生繞滲的難題。
PN (BW) is a variety of underground building waterproof engineering, water conservancy, traffic tunnel engineering, power plant cooling tower, municipal water supply and drainage and other concrete masonry concrete construction joint is a new and ideal materials to prevent leakage, the price is only the rubber sealing belt 1/4, steel plate water stop 1/5, completely to solve the rubber and steel strip by friction prone problem of seepage around the.
四、使用方法：
Four, the use of methods:
1、采用PN（BW）止水條用于混凝土施工縫的防水、施工縫處可留作平縫、平面可以是粗糙的，也可以是比較光滑的，可心是水平施工縫也可以是豎向施工縫，只需掃凈表面浮土，利用材料自身的粘性，將PN（BW）止水條粘貼在已澆混凝土的表面上，即可繼續(xù)澆注下水段混凝土。
1, using PN (BW) sealing strip used for waterproof, concrete construction joint can be reserved for sewing, plane can be rough, can also be relatively smooth, Kexin is horizontal construction joints can also be vertical construction joints, just sweep the surface regolith, using viscous material itself, will PN (BW) seal has been pasted on the surface of concrete, can continue to the next section of water pouring concrete.
2、施工縫也可做成凹形接縫，然后放PN（BW）止水條，使其一部分露出施工縫表面，然后可澆注下段的混凝土。
2, the construction joints can also be made into concave joints, and then put PN (BW) sealing strip, so that part of it exposed to the surface of the construction joints, and then pouring the next section of concrete.
五、產品規(guī)格和包裝：PN（BW）止水條用紙箱包裝，現生產30mm*20mm,20mm*15mm兩種規(guī)格，大規(guī)格每箱30米，分6盤、每盤5米。小規(guī)格每箱54米，分9盤，每盤6米。止水條隔離全部用防粘隔離紙包裹。并根據用戶需要，可生產異型規(guī)格的膨脹止水條。
Five, product specifications and packaging: PN (BW) water seal carton packaging, production is now 30mm*20mm, 20mm*15mm two specifications, large size of 30 meters per box, 6 sets, 5 meters per disk. Small size, 54 meters per box, 9 sets, 6 meters per disk. All the sealing strips are wrapped with anti sticking paper. And according to user needs, can produce special-shaped specifications of expansion bar.

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