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Hollow Glass Microspheres for Thermal Insulation Paint and Coating
- Jun 16, 2017 -


Hollow Glass Microspheres for Thermal Insulation Paint and Coating Product Detail

Basic Info

  • Model NO.:H32/ H40/ H46

  • Material:Soda Lime Borosilicate Glass

  • Type:Structured Packing

  • CAS No.:65997-17-3

  • Crush Strength:5mpa-69mpa

  • Thermal Conductivity:0.03-0.06W/M.K

  • pH:8-9.5

  • Appearance:White Fine Powder

  • Ingredients:Soda Lime Borosilicate Glass

  • Application:Filler for Various Applications

  • Purity:98%

  • Hollow Glass Microspheres for Thermal Insulation Paint and Coating Origin:Mainland China

  • HS Code:70182000

Hollow Glass Microspheres for Thermal Insulation Paint and Coating Product Description

Benefits for thermal insulation paint and coating:
1. Hollow glass microspheres have the smallest surface area and low oil absorption rate, can significantly reduce the consumption of other ingredients in paint.
2. The vitrified surface of glass microspheres can realize the chemical corrosion resistant, and reflexaction on light. Therefore, the paint can prevent from fouling, corrosion, UV, yellowing and scratching etc.
3. Thin gas inside the hollow glass microspheres with compact arrangement, makes low thermal conductivity, so that paint coating has a very good effect on heat insulation.
4. Hollow glass microspheres can effectively enhance the fluidity and smoothness of coating.
5. Hollow glass microspheres contain gas inside, so it has a good contractility resistance to hot and cold, thus enhancing the flexibility of coating, greatly reducing the cracking and peeling of the coating due to thermal expansion and contraction.
6. On premise of high filling level, the viscosity of paint will not be significantly increased, thus reducing the usage of solvents. It can reduce toxic gas emissions in the process of painting, and voc indicator can be effectively reduced.
Dosage recommendation: The addition is normally about 10-20% of the total weight. Adding methods are proposed as follows:
The hollow glass microspheres are proposed to add at the last step, and dispersed with low-speed, low shearing force mixing equipment. Due to its good liquidity, small friction, so it will easily dispersed into mixture to completely keep wet within a short time. Through slightly extending mixing time can achieve uniform dispersion. Hollow glass microspheres are inert and non-toxic. Due to its light weight, attention should be specially paid when adding. We recommend adding the microspheres by step, that is, the addition quantity is 1 / 2 of the remaining spheres each time. It can well avoid the microspheres floating into the air and make it disperse even more completely.
Recommended models for building coating: H32 h40
Recommended models for general industrial paint and coating: H46 h60
Recommended models for pipeline storage tank: H32 h40

Type   Composition              Color  True Density Crush Strength  Particle Size    Floating Ratio    Melting Point PH
g/cm3 Mpa/psi μm
10th% 50th% 90th%
H25 Soda Lime Borosilicate Glass white  0.25   5 / 750 30 65 100 93% 625°C 8-9.5
H32 Soda Lime Borosilicate Glass white  0.32 14 / 2000 30 56 74 92% 625°C 8-9.5
H40 Soda Lime Borosilicate Glass white  0.40 28 / 4000 20 45 70 92% 625°C 8-9.5
H46 Soda Lime Borosilicate Glass white  0.46 41 / 6000 22 45 65 92% 625°C 8-9.5
H60 Soda Lime Borosilicate Glass white  0.60 69 / 10000 18 40 60 92% 625°C 8-9.5


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