Bitumen Primer

Home » Bitumen Primer

Wiki

Introduction to Bitumen Primer D 41

Gold Bitumen Primer D 41 is a high-performance solution used in roofing, waterproofing, and dampproofing projects. It ensures long-lasting adhesion on concrete, masonry, and metal surfaces. Certified by ASTM D 41, it stands out as a reliable choice among professionals in the construction industry.

Performance & Versatility in Application

This primer is solvent-based and designed for both industrial and residential use. Its formula provides a durable bond even in harsh conditions. You can apply it to a variety of surfaces such as foam concrete, bricks, and steel. It continues to perform reliably regardless of the surface type or climate.

Composition and Environmental Benefits

Gold Bitumen Primer D 41 contains a unique blend of liquid cutback asphalt, mineral spirits, and p-bromobenzotrifluoride. These ingredients contribute to its low VOC emissions and strong adhesive quality. This combination makes it an ideal solution for projects that prioritize both environmental responsibility and high performance.

Exceptional Adhesion Capabilities

This primer creates strong bonds on both porous and non-porous surfaces. Moreover, its low VOC formulation reduces environmental impact while maintaining top-tier performance. By using it, professionals benefit from a safer, cleaner, and more effective application.

Modified Formula for Harsh Environments

The upgraded version includes a tacky, weather-resistant layer. This makes it suitable for high-stress areas like roof decks, sidings, and industrial structures. It helps protect surfaces even in extreme climates, ensuring the longevity of the installation.

Why Choose Gold Bitumen Primer D 41?

Strong bonding with bitumen-based products
Excellent dust-binding for cleaner applications
Resistant to water and corrosion
Compliant with ASTM D 41 and SASO 2057
Quick-drying and easy to apply
Effective on concrete, wood, metal, and more
Eco-friendly with reduced VOC levels

Application Areas

Gold Bitumen Primer D 41 supports a wide variety of applications in construction and maintenance. Its versatility makes it effective in both residential and commercial settings. Professionals use it for projects that require durability, adhesion, and weather resistance.

Main Use Cases

Priming concrete, asphalt, and porous materials
Protecting steel and vertical surfaces from corrosion
Acting as a base for waterproofing membranes

How to Apply Gold Bitumen Primer D 41

Step-by-Step Instructions

Follow these steps to achieve the best results:

Clean the target surface thoroughly—remove all dust, grease, and loose materials.
Stir the primer well to achieve a smooth and even consistency.
Apply it using a brush, roller, or spray gun. Recommended coverage: 5–6 m² per liter.
Allow the surface to dry fully before applying additional layers or materials.

Cleaning Tools After Use

Use gasoline or kerosene to clean tools and application equipment immediately after use. Regular maintenance ensures longer tool life and consistent application quality.

Efficiency and Coverage

Gold Bitumen Primer D 41 offers efficient coverage, typically between 0.2 to 0.3 kg/m². The exact amount depends on the porosity and texture of the surface. This makes it a cost-effective solution for both small and large projects.

Health and Safety Guidelines

To ensure safety during use:

Always wear protective gear—gloves, goggles, and a mask.
Ensure proper ventilation in the application area.
Keep the primer away from open flames or heat sources.

Storage Tips

Store the primer in its original sealed container to prevent contamination and evaporation. Keep it in a dry, shaded place to extend its shelf life and maintain quality.

Standards and Certification

Gold Bitumen Primer D 41 meets ASTM D 41 and SASO 2057 standards. It delivers reliable results while aligning with modern environmental and safety expectations. Construction experts trust this product for its proven performance and consistent quality.

What is bitumen primer?

Bitumen primer for priming surfaces prior to the application of bituminous materials.
Bitumen Primer D 41 can be used to seal and prime concrete, masonry and timber surfaces prior to the application of torch-on waterproofing membranes (where appropriate) and bitumen coatings. Bitumen primer D 41 is a cold applied, solvent based bituminous coating formulated with high quality hard oxidized bitumen compounds and selected hydrocarbon solvents for use as primer to self-adhesive and torch-on membranes on a variety of substrates.
Bitumen primer D 41 is mainly used as primer to self-adhesive membranes, torch-on membranes and bituminous waterproof coatings on concrete, block work, brickwork and other porous or absorbent surfaces.

Packing of bitumen primer D 41

5 litre, 25 litre tins

Uses of bitumen primer D41

Priming and sealing of concrete, masonry work, cementitious screeds and renders

Priming and sealing of existing bituminous waterproofing membranes

Priming and sealing of metal, timber, clay or cement bricks, and other porous and non-porous surfaces Other Information

Do not apply if temperature is below 5°C

Not suitable for potable drinking water tanks

Bitumen compounds tend to bleed through and discolor paints subsequently applied over it.

Bitumen primer HS code

HS code of bitumen primer is 27150090.

MATERIAL SAFETY DATA SHEET OF BITUMEN PRIMER

• Product: BITUMEN PRIMER
• Date of Issue: Oct. 2006 -Version: 1

1.PREPARATION AND COMPANY IDENTIFICATION:

• Preparation Trade Name: ATDM Co. , LTD
• Supplier: ATDM Co. , LTD

2. COMPOSITION/ INFORMATION ON INGREDIENTS:

• CAS Number Chemical Name % Classification
• 64742-82-1 White Spirit 60-70 F; R10; Xn; R65; R66; N; R51/53
• 64742-93-4 Bitumen 30-40

3. HAZARD IDENTIFICATION:

Contains solvent which causes defatting of the skin and, in extreme cases, dermatitis. Flammable (R10). Harmful, may cause lung damage if swallowed (R65). Toxic to aquatic organisms, may cause long term adverse effects in the aquatic environment (R51/53). Repeated exposure may cause skin dryness or cracking (R66).

4. FIRST AID MEASURES:

Inhalation: Remove person to fresh air. If discomfort persists seek medical advice.
Skin Contact: Remove contamination with proprietary skin cleaner, followed by washing with soap and water. This procedure should also be followed prior to eating, drinking, smoking and toilet functions.
Eye Contact: Irrigate immediately with clean water for 15 minutes and obtain medical attention.
Ingestion: If swallowed, seek medical advice immediately. Do not induce vomiting. If possible show product information or label to medical advisor.

5. FIRE FIGHTING MEASURES:

• Suitable Extinguishing Media: Dry Powder, CO2, Foam, Sand, Earth
• Unsuitable Extinguishing Media: NEVER USE WATER JET
• Special Exposure Hazards in Fires: None known
• Required Special Protective
• Equipment for Fire Fighters: Wear suitable protective clothing

6. ACCIDENTAL RELEASE MEASURES:

Precautions: Stem flow of spilled material. Extinguish all naked flames and cigarettes. Material should be mopped up immediately with an inert absorbent material, such as sand, sawdust, earth, etc. Prevent spills from entering sewers and drains. Dispose of at an appropriate licensed waste disposal site in accordance with current legislation and regulations.

7. HANDLING AND STORAGE:

Handling: Ensure adequate ventilation
Storage: Should be stored under cover, out of direct sunlight and away from sources of heat and ignition

8. EXPOSURE CONTROLS:

UK Occupational exposure standards EH40 White Spirit 100ppm 575mg/m3 8HR TWA
Respiratory Protection: Should not be necessary with adequate ventilation. In poorly ventilated
Areas a cartridge mask, approved for organic vapours, is recommended.Hand Protection: Wear suitable impervious gloves.
Skin Protection: Wear appropriate protective clothing. Eye Protection: Wear chemical resistant goggles.

9. PHYSICAL AND CHEMICAL PROPERTIES:

• Appearance: Black Liquid Flammability: Not applicable
• Odour: Petroleum solvent Autoflammability: Approx 230oc
• Ph: Not applicable Explosive Properties: UEL – 8% Vol LEL – 0.9% Vol
• Boiling Point/ Oxidising Properties: Not applicable
• Boiling point range Not determined Vapour Pressure: Not determined
• Melting Point/ Relative Density: Approx 1.0
• Melting point range Not applicable Solubility (water & fat): Insoluble in water
• Flashpoint (oc): 40oc – closed cup

10. STABILITY AND REACTIVITY:

Stable under normal conditions. Avoid excessive heat.
Hazardous decomposition products: Carbon dioxide, carbon monoxide, hydrogen sulphide, oxides of nitrogen and sulphur.

11.TOXICOLOGICAL INFORMATION:

When bitumen is mixed with diluent, it is believed that the preparation becomes more bio-available. The carcinogenicity of the preparation is strongly dependant on the nature of the solvent used since the polycylic aromatic content of the bitumen is low.

12.ECOLOGICAL INFORMATION:

The preparation has not been tested but, the slow rates of bio degradation of bitumen can cause interference with the normal functioning of ecological cycles. Bitumens should therefore be contained and spills avoided.

13.DISPOSAL CONSIDERATIONS:

Material and container must be disposed of as “hazardous waste” in accordance with local and national regulations.

14. TRANSPORT INFORMATION:

• U.N. No: 1999 Liquid Tars Class 3 Packaging Group III
• 15. REGULATORY INFORMATION:
• R10 Flammable.
• R51/53 Toxic to aquatic organisms, may cause long term effects in the aquatic environment.
• R65 Harmful, may cause lung damage if swallowed.
• R66 Repeated exposure may cause skin dryness or cracking.
• S2 Keep out of reach of children.
• S29/56 Do not empty into drains, dispose of material and container as hazardous waste or
• Take to a special waste collection point.
• S37 Wear suitable protective gloves.
• S46 If swallowed seek medical advice immediately and show this container label.
• S51 Use only in well ventilated areas.
• S61 Avoid release to the environment. Refer to special instructions/ safety data sheets.
o EEC Symbol Xn Harmful N: Dangerous to the environment
o Contains white spirit.
• DANGEROUS FOR THE ENVIRONMENT
• HARMFUL

15. OTHER INFORMATION:

USES: BITUMEN PAINT PRIMER

The data contained in this Safety Data Sheet has been supplied as required by the Chemical (Hazard Identification and Packaging) Regulations 1993, as amended, for the purpose of protecting the health and safety of industrial and commercial users who are deemed capable of understanding and acting on the information provided. Please ensure that it is passed to the appropriate person(s) in your company, who are capable of acting on the information. This information is given in good faith, being based on the latest knowledge available to ATDM. No known relevant information has been omitted from this Material Safety Data Sheet and the information provided is designed to enable the user to use the product safely. The user should not assume on the basis of the information provided in this sheet that the product is suitable for any abnormal use. If the information provided in insufficient to ensure
Safety in any particular application, contact Gold Bitumen It for further advice before the proposed application is undertaken.

Usage of bitumen mastic

The asphalt emulsions useful as components in the tiecoat of this invention are dispersions of asphalt in water. These asphalt emulsions may also contain emulsifiers and stabilizers, such as for example soap or surfactant, which are anionic, cationic or nonionic. A useful asphalt emulsion, for example, is SS-1 h grade asphalt, an anionically-stabilized asphalt emulsion. The asphalt emulsions contain from about 35% solids to about 75% solids, more preferably from about 55% solids to about 65% solids and most preferably about 60% solids. Asphalt emulsions with less than about 35% solids have been found to be detrimental to tack, lower the viscosity below a usable level and unduly prolong the application of the tiecoat. Asphalt emulsions with greater that about 75% solids have been found to be detrimental to stability and increase the viscosity above a usable level. The asphalt emulsions have hardness from about 20 pen hardness to about 100 pen hardness and more preferably from about 20 pen hardness to about 40 pen hardness. Pen hardness values greater than about 100 are too soft for man roofing applications and contribute significantly to surface tack.

The latices used in the tiecoat of this invention may be formed from any monomer or mixture of monomers which yields a water-insoluble latex polymer with a glass transition temperature of less than about 10° C. in the dried state. For example, acrylic ester monomers, including methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, decyl acrylate, methyl methacrylate, ethyl methacrylate, isodecyl methacrylate, butyl methacrylate; acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid, styrene, substituted styrenes, butadiene, acrylonitrile, ethylene, vinyl acetate, and the like may be used. It is required that the glass transition temperature of resultant latex be less than about 10° C. so that the tiecoat composition, formed by admixture with the asphalt emulsion, is flexible enough to withstand the requirements of the mastic coating system which may experience exterior temperature extremes and concommitant substrate expansion and contraction. Some of the monomers may only be used with other monomers in a mixture because they alone would not give rise to a homopolymer whose glass transition temperature is less than about 10° C., such as for example methyl methacrylate, a monomer whose homopolymer has a Tg of 105° C.

Usage of mastic asphalt

In addition, conventional coating components such as, for example, pigments, dispersants, surfactants, coalescents, wetting agents, rheology modifiers, thickeners, drying retarders, biocides, antifoaming agents, colorants, waxes, and the like may be used in the latex of the tiecoat of this invention.

The latex polymer is incorporated into the asphalt emulsion at a level of from about 5% latex solids/95% asphalt emulsion solids to about 85% latex solids/15% asphalt emulsion solids, based on the % total solids of the admixture, more preferably from about 15% latex solids/85% asphalt emulsion solids to about 85% latex solids/15% asphalt emulsion solids and most preferably from about 15% latex solids/85% asphalt emulsion solids to about 50% latex solids/50% asphalt emulsion solids.

The overall level of solids in the tiecoat is from about 10% by weight to about 75% by weight of the weight of the tiecoat. We have found that if the total weight % solids is less than about 10% it is detrimental to tack, lowers the viscosity of the tiecoat below a usable level and unduly prolongs the application of the tiecoat. Total weight % solids greater than about 75% have been found to be detrimental to the stability of the tiecoat and increase the viscosity of the tiecoat above a usable level. The level of solids in the tiecoat is more preferably from about 40% by weight to about 60% by weight, based on the total weight %.

Applications of the tiecoat may be made to various substrates, such as for example asphalt-containing substrates, bitumen-containing substrates or modified bitumen, cement/asbestos shingles or roofing panels, urethane foam roofing panels, deteriorated concrete, and the like. The tiecoat may be applied by conventional techniques, such as for example by brush, roller, airless spray, and the like.

A tiecoat is applied to a substrate, such as for example a bituminous surface prone to releasing colored bodies which would otherwise migrate into and discolor a mastic topcoat if it were directly applied to the substrate or if it were applied to an non-latex modified asphalt emulsion tiecoat. The application of the tiecoat is an additional step in the application of the overall mastic coating system. It is essential that the tiecoat rapidly become low in tack so that the subsequent mastic topcoat can promptly be applied by operators walking on the tiecoat such that the overall application process is not unduly prolonged.

Application of bitumen primer

bitumen primer is a bitumen based primer for the surface conditioning of concrete and timber substrates prior to the application of heat fused APP and SBS modified bitumen membranes such as UniTorch.

Features4

• Versatile bituminous primer for porous and non-porous surfaces
• Used on concrete, metal and timber surfaces
• Economical & easy to apply

Application

Bitumen Primer may be applied by brush or roller. The applied film must be allowed to dry before being overlayed with any waterproofing treatment so as to avoid solvent entrapment.

Surface Preparation

As with all surface coatings, good preparation is of paramount
importance to the success and long-life of the system.

• Ensure that the surface to be treated is dry and sound, free of loose, dusting or flaking particles and free from contaminants such as grease and fungus.
• Defects such as cracks, broken mortar joints, etc. are to be repaired prior to primer application.

Specification of bitumen mastic

To ensure that tenders are based upon the specific grades of mastic asphalt required, it is essential that the asphalt contractor is given precise details of the BSS number and of the table and column number therein.
Natural rock aggregate mastic or limestone aggregate mastic.
The Standard applicable.
The type of asphaltic cement, which is usually defined by reference to the appropriate columns in the tables of the BSS.
In addition, the asphalt contractor must be advised, as appropriate, of:
The type of isolating membrane, eg sheathing felt, fibreglass tissue, kraft building paper underlay etc.
The material to be used fro surface reflective treatment eg , chippings, bituminous aluminium paint, acrylic coloured paint etc.

Mastic asphalt

Architects, engineers and quantity surveyors are recommended to include the following clause in their invitations to tender
Table of British Standards for mastic asphalt specifications indicating the asphaltic cement recommended in each case

Type	§ Asphaltic cement

Roofing
BSS 6925 – 988	Table 3, col. 2

Tanking and Damp-proof coursing
BSS 6925 – 1097	Table 3, col. 2

Flooring
BSS 1076 – grade A	Table 5, col. 2
BSS 1076 – grade B	Table 6, col 2

Paving
BSS 1447	Table 1, col. 3