600mm Polythene DPC

Our innovative techniques used in our DPM production has allowed us to use our vast experience in developing our new DPC range. Once again using the very latest state of the art technology to produce goods to BS 6515:84 standard.

Suitable for brick, block, stone or concrete walls Toughcourse will not crack under low temperature and will provide true damp proof protection.

Damp-Proof Course BS 6515:84
1: Scope
BS 6515 specifies requirements for the composition, thickness, finish and
impermeability of polythene damp-proof courses intended for use in masonry
construction.
2: Definitions
For the purposes of this British Standard, the definitions given in BS 6100:
Section 1.0 apply.
3: Composition
The damp-proof course (dpc) shall consist of black low-density polyethylene
sheet having a mass in the range of 0.425kg/mg2 to 0.54kg/m2, formed from a
polyethylene polymer of a melt flow rate of five or less when measured according
to BS 2782: Method 720A and having a density within the range 0.915 g/mL at
23º C when tested according to method 620A, 620B or 620D of BS 2782:
Methods 620A to 620D: 1980. When determined as described in appendix A, the
sheet shall contain a minimum of 2% by mass of evenly dispersed carbon black
and shall contain not more than 5% mass of material other than polyethylene.
4: Thickness
Nine specimens taken from a roll of dpm material and measured as described in
appendix B shall have a single layer of thickness not less than 0.46mm.
5: Finish and Impermeability
The sheet shall be free from air bubbles and, when tested as described in
appendix C. have no pin holes. Note: A surface texture is permitted.
6: Marking and Packaging
The finished dpc shall be packed in rolls, each roll containing not less than 30m
in length. Each roll shall be labelled legibly with the number and date of this
British Standard, ie BS 6515: 1984.