Precautions for PVC waterproof materials

The construction methods of this product include: bond method, empty shop method and mechanical fixation method. Thermal welding is usually used for joints. Moist substrate construction.

(1) basic requirements

The base and joints shall be clean, dry, all kinds of joints and joints shall be filled with ointment.

Parliamentary guarantee that the base surface is smooth, solid, no sanding, falling off, cracks and so on.

(2) waterproof coating construction

Non-woven fabrics or thin felt can be used as reinforcement materials, and no reinforcement materials can be used, but the joint area of the plate joints coating must be a layer of non-woven cloth or thin felt.

Parliamentary waterproof coating materials are generally 5-6kg /m2, and in principle "multi-layer thin coating" is adopted. It can be brushed or scraped during the construction. The coating of each layer is about LKG /m2, and it needs to be applied 5-6 times. The next brush must wait until the last brush is dry. This article is from global plasticizing network pvc123.com

Torque coatings can be diluted appropriately before and during painting.

(3) construction of protective layer

If the coating surface is to be used as a protective layer, it can be sprayed with mica powder (about 20 meshes of specification) and cleaned before the coating is dry. After drying, the unbonded part can be swept away.

(4) matters needing attention

(1) the temperature below 5 ℃ and on rainy days or there is rain forecast 6 h case shall not be construction.

In summer, when the temperature is high, the construction should be avoided under the hot sun, so as to prevent the bottom coating from loose foaming due to the rapid evaporation of water.

The coating should be stored in a sealed container. The surface layer can form a small amount of water discharge into a water seal without peeling.

(4) shall not low garlic street 0 ℃ storage temperature. During transportation, the storage device shall not be inverted or collided to prevent leakage.