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Technical Specification
White & Yellow MOST 803.4.2.1 (Conforms to AASHTO M249) |
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The thermoplastic material shall be homogeneously composed of aggregates, pigment, resin and glass reflector zing spheres. The material shall be free from all skins, dirt and foreign objects and shall comply with requirements in the table given below.
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 PROPORTIONS OF CONSTITUENTS OF MARKING MATERIAL |
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(Percentage by weight)
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Constituents |
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White |
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Yellow |
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Binder |
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18.0 min |
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18.0 min |
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Glass Beads |
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30 – 40 |
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30 – 40 |
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Titanium Dioxide |
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10.0 min |
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- |
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Calcium Carbonate & inert filters |
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42.0 max See |
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Yellow Pigment |
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- |
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Note |
Note: Amount of Yellow pigment, calcium carbonate and inert filters shall be at the option of the manufacturer, provided all other requirements of the specification are met.
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Binder
Shall comprise of plasticized synthetic hydrocarbon resin, plasticized natural resin or rosins.
Pigment
White pigment material shall either consist of Titanium Di-oxide Type A ( Anatase) or Type R ( Rutile ). The Lead Chromate content of road marking material shall not exceed 5% by mass.
Aggregates
Light colored silica sand, calcite, quartz or calcinated flint.
Reflectorization
Solid Glass Bead to be incorporated in the material prior to application to the road surface shall comply with Class A requirements of BS 6088.
Solid Glass Beads for additional surface reflectorization shall comply with Class B – BS Drop On requirements of BS 6088. |
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PHYSICAL PROPERTIES OF MAKING MATERIAL |
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Luminance
White: Daylight luminance at 45 degrees – 65% min as per AASHTO M249.
Yellow: Daylight luminance at 45 degrees – 45% min as per AASHTO M249.
Drying Time
When applied at a temperature specified by the manufacturer and to the required thickness, the material shall set to bear traffic in not more than 15 minutes.
Skid Resistance
Not less than 45 as per BS – 6044.
CRACKING RESISTANCE AT LOW TEMPERATURE
The material shall show no cracks on application to concrete blocks.
Softening Point
102.5 ± 9.5°C as per ASTM D 36
Flow Resistance
Not more than 25% as per AASHTO M 249.
Yellowness Index (For white material)
Not more than 0.12 as per ASHTO M 249. |
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Note : Data, specification, direction and recommendation given in this sheet represent results and experience under controlled or specially defined circumstance and are subject to change without notice
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For Quality, Reliability, Service & Safety
contact ASPHALT - ROMAC the specialist in road marking |
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