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Twist C15

Twist C15 are elastomeric water proofing membranes, manufactured in an advanced continuous calendaring process by saturating and coating a polyester carrier with a water proofing compound made of a special grade of bitumen, modified with SBS polymers. While the SBS polymers enhance the thermal, mechanical, and aging properties of the membrane compound, the mechanical characteristics of Twist C15 are established by the carrier made of non-woven Polyester, which acts as the reinforcement that provides the membrane with the profound mechanical properties of the Polyester

Intended Use

Twist C15 can be used for roofing and waterproofing applications with high dimensional stability requirements and subjected to considerable movements induced by stresses, and to critical weathering conditions.
Twist C15 membranes are particularly recommended for the following Areas of Applications:

– Flat and sloped roofs protected applications for medium and large areas.
– Foundations and underground structures with critical site conditions.
– Protected waterproofing of roof decks or substrates subject to movements, such as metal decks, insulation boards, tiles, etc.

Major Features

  • Substantial Dimensional Stability.
  • Good Resistance to Chemicals.
  • Superior Isotropic Mechanical Properties.
  • Significant Compound Elastic Behavior.
  • High Performance under a wide range of temperature fluctuation.

Finishes

The lower surface of Twist C15 is laminated with a Polyethylene film while the upper surface is covered with one of the following surface finish materials:

Method of Application

Twist C15 membranes are applied by using a propane torch or by mechanical fastening.
The substrate surface must be clean, dry, smooth, and free of any irregularities. According to the surface conditions, a coat of water base primers may be required, prior to the applications of the membranes.
Twist C15 can be applied to the substrate fully bonded, semi bonded or loose lay, and the method of adhesion to the substrate shall be decided according to the waterproofing system design. Side laps should be from 12-15 cm. For more information on application refer to the TECHNOBIT Application Guide.

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