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Émail de bitume
Les émaux de bitume et les apprêts appropriés à utiliser en combinaison avec ceux-ci sont décrits dans la norme britannique « Specification for Bitumen-based Hot-applied Coating Materials for Protecting Iron and Steel, Including Suitable Primers Where Required », BS 4147:1980 publiée par le British Standards Institution, ce document étant incorporé dans la présente spécification. Il en va de même pour les exemples d’émaux de goudron et d’apprêts correspondants décrits dans « Specification for Coal-Tar-Based Hot-applied Coating Materials for Protecting Iron and Steel, Including Suitable Primers Where Required », BS 4164:1980, également publiée par le British Standards Institution.
Émail bitumineux
Les émaux de goudron, tels que par exemple l’émail de goudron de houille, sont des matériaux de revêtement de conduites anciens et bien connus possédant plusieurs excellentes propriétés, notamment un effet protecteur remarquable contre la corrosion. Cependant, ce matériau devient progressivement obsolète, en partie en raison de ses inconvénients environnementaux et en partie à cause de la difficulté d’obtenir des matières premières de qualité appropriée. De plus, l’utilisation de l’émail de goudron est grevée de désavantages liés à sa production, car les propriétés de l’émail peuvent varier lors du processus de fabrication, qui implique des pompages de retour répétés, des réchauffages et des revêtements successifs, où il est inévitable que certains ingrédients de l’émail s’évaporent.
Revêtement émaillé
Un émail de goudron typique destiné à la protection contre la corrosion contient du goudron de qualité 105/15, 105/8 ou 120/5 selon la norme BS 4164:1980 dans une proportion de 65 à 75 % en poids, associé à une charge dans une proportion de 25 à 35 % en poids.
Revêtement de conduites à l’émail
Les émaux de bitume sont des matériaux de revêtement de conduites bien connus et appréciés, utilisés de plus en plus fréquemment en remplacement de l’émail de goudron de houille. La majorité des pipelines de pétrole et de gaz en mer du Nord sont revêtus d’émaux de bitume. Ce matériau est souvent recommandé, mais il a également été critiqué, par exemple en raison de la mauvaise qualité du bitume pendant la crise pétrolière de 1972 à 1973. Il est donc d’une importance vitale que la qualité du bitume utilisée soit correcte, comme par exemple le bitume oxydé 115/15, et que les approvisionnements soient fiables.
Émail bitumineux anticorrosion
Un émail bitumineux conventionnel typique destiné à la protection contre la corrosion contient du bitume de qualité 115/15 selon la norme BS 4147:1980 dans une proportion de 65 à 75 % en poids, associé à 25 à 35 % en poids de charge, généralement environ 70 % de bitume et 30 % de charge. L’ajout de charge est généralement déterminé par le point de fusion du bitume utilisé. Un émail bitumineux conventionnel est chauffé à 220–230 °C tout en étant agité, puis appliqué en une couche de 5 à 7 mm d’épaisseur.
Le brevet GB-PS n° 1538267 décrit un procédé de revêtement de conduites consistant à appliquer sur la conduite une composition bitumineuse comprenant de 80 à 99 % en poids de bitume et de 1 à 20 % en poids d’un bloc polymère ayant la configuration générale : A-B-(–B-A)n
Où chaque A est un bloc polymère thermoplastique d’un hydrocarbure monovinyl aromatique ou d’un 1-alcène, B est un bloc polymère élastomère d’un diène conjugué ou de plus d’un 1-alcène, et n est un entier ou un dérivé hydrogéné du copolymère en bloc.
Cependant, le procédé de revêtement susmentionné n’a pas encore été accepté pour un usage industriel en raison d’une adhérence insuffisante de la composition bitumineuse au tube.
What is pipe coating bitumen enamel?
We are producer of bitumen enamel is a pipe coating products applied durable coating based on bitumen enamel which is a type of modified bitumen that has been successfully used for many years for corrosion protection of steel pipes.
Advantage of bitumen enamel.
Bitumen enamel has excellent adhesion to steel provides a track record of long term corrosion resistance.
Bitumen enamel used for pipelines designed to different application such as water, gas, oil or any other fluid when the continuous temperature of the fluid being transported does not exceed 70°C (I 58°F)!
Bitumen enamel is safer and more environmentally friendly system then coal tar enamel because of acidity of tar.
Bitumen enamel pipe coatings with varying grades of bitumen enamel and inner and outer wraps along with a thickness as per your design specification.
The enamel can be applied to various pipe diameters from 90 mm (3.5″) to over 1200 mm (48″).
Enamel pipe coating bitumen based material is using for many years across the world.
HS code of Bitumen Enamel
with wide range grades is used in different climate conditions and various service temperatures .
Gold Bitumen Enamel with high quality glass fiber Inner wrap and outer wrap ensures a long term protection for your surface.
The HS code of asphalt mastic is 2715
HS code of Bitumen Enamel
Section 1. Product and company identification
Product name: bitumen enamel
Section 2. Composition/information on ingredients
Chemical class: alkyd based paints
Ec classification: harmful, xn
R phrases: r10, 20/21, 65
S phrases: s2, 13, 43, 62
Hazardous and/or other relevant components % (w/w) cas no. E.c. No.
White spirits > 10 % 64742-88-7 649-405-00-x
Solvent naphta > 10 % 64742-94-5 649-424-00-3
Hydrocarbon blend (c9-c11 n-paraffins) > 10 % 64771-72-8
Section 3. Hazards identification
Sapma health rating: 2-moderate – temporary or minor injury possible even if treatment given.
Inhalation: harmful, avoid excessive exposure to this material.
Skin: irritating, risk of dermatitis
Eyes: highly irritating and risk of irreversible damage.
Ingestion: harmful. May cause lung damage if swallowed.
No carcinogenic, mutagenic or genetic effects established.
May have short-term environmental effects. Contain, monitor & remove.
Section 4. First aid measures
Inhalation: move to fresh air. In case of discomfort seek medical attention.
Skin: remove contaminated clothing. Use a skin cleaner/soap and water. If any discomfort get medical attention.
Eyes: rinse immediately with plenty of water. Refer immediately to doctor.
Ingestion: wash mouth with plenty of water. Do not induce vomiting. Seek medical attention.
Section 5. Fire fighting measures
Flammable with toxic fumes.
Containers can burst in a fire. Can form explosive vapour/air mixture. Static discharge hazard.
Use foam, co2, dry powder. Use fog to cool and control. Do not use water jets. Cool containers in case of fire.
Section 6. Accidental release measures – see also sections 5, 8, 13
Ensure sufficient ventilation.
Contain & collect spillage with inert material and dispose of according to local regulations.
Keep out of drains and sewers.
Section 7. Handling and storage
Keep away from ignition sources. No open flames. No smoking. Keep containers cool. Store away from direct sun.
Avoid free fall of liquid – use earthing.
Section 8. Exposure controls/personal protection
Name cas oel (mg/m3) oel (ppm) stoel (mg/m3) stoel (ppm)
Xylene 1330-20-7 435 100 650 150 rl+ s
White spirits 64742-88-7 350 200 720 125 rl
(cl/rl = controlled/recommended level ‘s’ = skin annotation)
Sapma rating: 2-h-e ppe – respirator and eye protection
Inhalation: in case of insufficient ventilation, use suitable respiratory protection.
Skin: avoid direct contact. Use barrier cream and impervious gloves.
Eyes: use goggles. Avoid direct contact.
Ingestion: observe the rules of hygiene. Wash before eating, drinking or smoking.
Section 9. Physical and chemical properties
Appearance: white to off white liquid
Flash point: > 23 °c
Density: 0.87 – 1.03 (typical)
Viscosity: 70 – 74 ku
Solubility: soluble in organic solvents, insoluble in water.
Section 10. Stability and reactivity
Stable under normal conditions. Could generate static – use earthing.
Inert – no reaction with fire-fighting water.
Section 11. Toxicological information
No carcinogenic, mutagenic or genetic effects established
Section 12. Ecological information
May have short-term environmental effects. Contain, monitor & remove.
Section 13. Disposal information
Use reputable waste disposal contractors – potential for spontaneous combustion. Care with used containers.
Section 14. Transport information
Sin/un number: 1263
Shipping name: bitumen enamel
Packaging group: iii
Class: 3
Section 15. Regulatory information
Classification: harmful, xn
R10 flammable
R20/21 harmful by inhalation and contact with skin
R65 harmful – may cause lung damage if swallowed
S2 keep out of reach of children. (retail sales only)
S13 keep away from food, drink and animal feeding stuffs
S43 in case of fire, use water fog, foam or powder – do not use water jets
S62 if swallowed, do not induce vomiting, seek medical advice immediately
Section 16. Other information
Take precautionary measures against static discharges. In case of any discomfort always seek medical advice.
All information is given in good faith but without guarantee in respect of accuracy. No responsibility is accepted for errors or omissions or the consequences thereof.
Usage of bitumen Enamel
The use of bitumen enamel is encumbered with draw-backs relating to the production thereof because the properties of the bitumen enamel may change during the production which involves repeated return pumping, reheating and flood coatings, where it cannot be avoided that some of the ingredients of the enamel evaporate. , A typical tar enamel to be used for protection against corrosion contains tar of the quality 105/15, 105/8 or 120/5 according to BS 4164: 1980 in a quantity of 65 to 75% by, weight together with filler in a quantity of 25 to 35% by weight.
Usage of asphalt enamel
Bitumen enamels are well-known and appreciated pipe coating materials presently used to an increasing extent instead of coal tar enamel. Most of the pipelines for oil and gas in the North Sea are coated with bitumen enamels. The material is often recommended, but has also been criticized for-instance due to poor bitumen quality in connection with the oil crisis in 1972 to 1973. It is of vital importance that. The correct bitumen quality is used, such as for instance oxidized bitumen 115/15, and that-the supplies: ~ 30 axes reliable.
bitumen enamel
A typical conventional bitumen enamel to be used for protection against corrosion contains’bitumen of the quality 115/15 according to BS 4147: 1980 in a quantity PCT/DK91 /00292 of 65 to 75 by weight together with 25 to 35~ by weight of filler, most typically approximately 70~ by weight of bitumen and 30~ by weight of filler. The addition of filler is usually determined by the melting point of the bitumen. 5 used. A conventional bitumen enamel is heated to 220 to 230°C while being stir d and applied in a layer of a thickness of 5 to 7 mm.
GB-PS No. 1538267 discloses a process for coating a pipe comprising applying to the pipe a bituminous composition comprising-from 80 to 99$ by weight of bitumen and from 1 to 20~ by weight of a block, polymer having the general configuration:
A-B-(-B-A)n wherein each A is a thermoplastic polymer block of a monovinyl aromatic hydrocarbon or a 1-alkene, B is an elastomeric polymer block o~ a conjugated diene or more than one 1-alkene, and n is an integer or a hydrogenated derivative of the block copolymer.
Bitumen enamel
Bitumen enamel is corrosion protection material in onshore and offshore.
Long Term Corrosion Protection
The best adhesion to steel provides a track record of long term corrosion resistance.
Bitumen Enamel
Recommended for pipelines designed to convey water, gas, oil or any other fluid when the continuous temperature of the fluid being transported does not exceed 70°C (I 58°F)*.
Bitumen enamel is safer and more environmentally friendly system then coal tar enamel.
Engineered Solutions
Advanced manufacturing techniques allow Breeder Shaw to supply AE coatings with varying grades of asphalt enamels and inner and outer wraps along with a thickness as per your design specification.
The system can be applied to various pipe diameters from 90 mm (3.5) to over 1200 mm (48).
Proven Performance
• Extensive track record of excellent performance in over 8,000 enamel pipe coating projects
• AE coating for large projects can be performed at multiple Breeder Shaw locations to improve logistics.
• High capacity within the Breeder Shaw plant network allows the client to benefit from single
• For additional standards and specifications with which this product complies, please contact your Breeder Shaw representative.
Specification of bitumen enamel grade A,B and C
Test | Requirement |
Test Method | ||
Grade A | Grade B | Grade C | ||
Filler content , by ignition | 25-35 | 25-35 | 45-55 | BS 4147:App. B |
Density @ 25°C, g/cm3 | 1.2-1.4 | 1.2-1.4 | 1.4-1.65 | BS 4147 |
Soft ening Point (ring &ball), | 100-120 | 115-130 | 120-150 | BS 2000 part 58 |
Penetration@25°C, 10-1mm | 10-20 | 5-17 | 5-15 | BS 2000: part 49 |
Flash Point (Cleveland open cup), | 250 | 260 | 260 | BS 4689 |
Sa g, max, min @60°C, 24h @75°C, 24h |
Max. 1.5 – | – Max.1.5 | – Max. 1.5 | BS 4147: App. E – |
Bend @ 0°C, | min 20 | min 15 | min 10 | BS 4147:
App. F |
Peel initial& delayed, Max; mm @30°C @40°C @50°C @60°C |
3.0 3.0 3.0 3.0 |
3.0 3.0 3.0 3.0 |
– 3.0 3.0 3.0 | BS 4147:
– – – – |
Impact, disbanded | BS 4147: App. G | |||