BITUMEN PRIMER HM
A fast-drying and high-penetration synthetic rubber-based primer.
Product variations:
DANOSA BITUMEN PRIMER HM is a fast-drying and high-penetration synthetic rubber-based primer, developed for securely bonding bitumen hot-melt waterproofing to concrete surfaces. DANOSA BITUMEN PRIMER HM is also suitable to bond bituminous torch-on membranes including both bituminous underlays and air and vapour control layers (AVCL’s) to suitable Safe2Torch substrates. BITUMEN PRIMER HM is a roller or brush-applied mixture of cold-applied synthetic rubbers.
Support
- Concrete/Screed
- Timber.
- Cleaned and prepared existing bitumen felt and mastic asphalt roof membranes
- The substrate must be solid, with a suitable surface condition prior to work commencing and able to resist all dead and imposed loadings. Adhesion tests should be carried out prior to use. BITUMEN PRIMER HM should only be used for the substrates listed with torch-applied membranes or hot-melt installations. * A timber deck should be discussed with the project lead designer, the project lead contractor and DANOSA UK technical department with consideration to Safe2Torch requirements or pouring of hot liquid. When deemed safe, all board joints should be taped with ESTERDAN 30/P AUTOADHESIVO COVER STRIP (202155).
Instruction for Use
The instructions for application below are for guidance only. Please always refer to any project-specific DANOSA UK recommendations. Adhesion tests should be carried out ideally a minimum of 48-hours prior to the general installation works commencing.
- Ensure that all surfaces to be primed are clean, dry and free from contamination.
- Ensure that the deck surface is relatively flat, with no significant variations in level and that there are no fixings protruding from the deck surface. The deck surface must be solid and capable of transferring all loadings to the structural frame.
- As above ‘Suitable Substrates’ section, when applicable, all timber board joints should be primed locally with BITUMEN PRIMER+ SA (321785) and taped with ESTERDAN 30/P AUTOADHESIVO COVER STRIP (202155).
- The primer is supplied ready to use. Apply using a lambs-wool, solvent compatible roller or a synthetic or natural bristle paint brush which is compatible with solvent adhesives, ensuring an even coat with no excessive pooling.
- Allow the primer to dry before applying the torched-on AVCL membrane or hot-melt waterproofing system. Drying times will vary with the substrate surface and the ambient temperature.
- Whilst unlikely, two coats of primer may be required on very porous substrates.
- Drying times may vary depending on ambient temperature, coating thickness and porosity of the substrates. Bitumen Primer HM can be used for up to 48 hours after application (at 20°C ambient temperature). If this time is exceeded, recoat the substrate.
Warning
- Disposal of used tins should be classified as packaging containing residues of/ or contaminated by hazardous substances using waste code EWC 15 01 10. For further information, please contact DANOSA UK technical department, at uktechnical@danosa.com.
- Please see product safety datasheet for further information.
Handling, storage and preservation
- This product should be stored unopened in dry conditions, out of direct sunlight, at an ambient temperature of 5°C to 25°C. This will ensure that the stated shelf-life is achieved. Once opened, the products shelf-life will reduce.
Notice
- The information contained in this document and any other advice provided, are given in good faith, based on DANOSA's current knowledge and experience when products are properly stored, handled and applied, in normal situations and in accordance with the recommendations of DANOSA. The information applies only to the application (s) and the product (s) to which reference is expressly made. In case of changes in the parameters of the application, or in case of a different application, consult the DANOSA Technical Service before using the DANOSA products. The information contained herein does not exonerate the responsibility of the building agents to test the products for the application and intended use, as well as their correct application in accordance with current legal regulations. The product images used in our communications are indicative and may differ slightly in color and aesthetic appearance in relation to the final product.Orders are accepted in accordance with the terms of our current General Sales Conditions.DANOSA reserves the right to modify, without prior notice, the data reflected in this documentation.Website: www.danosa.com E-mail: info@danosa.com Telephone: +34 949 88 82 10
Presentation
- Volume (L): 25
- Weight (kg): 23
- Coverage (m²): >150 per 25 L TIN (23.0 kg) (depending on substrate porosity)
- Colour: Red
- Product code: 320105
Technical Data
| Concept | Value | Standard |
|---|---|---|
| Base | Synthetic rubber | - |
| Temperature resistance (ºC) | > 75 | - |
| Application temperature (ºC) | 5 / 30 | - |
| Storage temperature (ºC) | 5 / 25 | - |
| Min. service temperatures (ºC) | 5 | - |
| Cure time at 20 ºC (min) | 60 | - |
| Viscosity (cps) | 60 - 150 | - |
