Products
Model No.: HF-68
Brand: SKYHIL
Classification: Chemical Auxiliary Agent
Place Of Origin: China
Types Of: Adsorbent
Appearance: Powder, White Powder
Usage: Leather Auxiliary Agents
Material: 2-Phenyl-2-imidazoline Pyromellitate
Molecular Formula: C10H6O8 . C9H10N2
Application: Powder Coatings
CAS No.: 54553-90-1
EINECS No: 259-224-4
Packaging: 25 kgs/bag
Productivity: 800Ton/Month
Transportation: Ocean,Land,Air
Place of Origin: CHINA
Supply Ability: 10000Ton/Year
Certificate: SGS/ASTM/ROHS
HS Code: 3906909000
Port: Guangzhou,Shenzhen,Shanghai
Payment Type: L/C,T/T,D/P,Paypal
Incoterm: FOB,CFR,CIF,EXW
1. How can we turn solid state silica into powder state silica?
* First, we are using the grinding method to turn solid state silica into powder state silica. This way can only change its
appearance performance but not its performance abilities. Then, we should use the gel process method or precipitation
to change its inner ability.
2. What functions can the silicon dioxide take when it is used as hardener.
* It can enhance the coatings' viscosity.
* It can enhance the srcatch resistance which can extend the coatings' using time.
* It can enhance the coatings adhesion.
3. Which coatings can use silicon dioxide as hardener?
* We often use silicon dioxide as hardener in the industrial coatings and automotive coatings. When adding silica dioxide
into the coatings. It will form a protective transparent film on the coatings' surface which can make effects to prevent
coatings from srcatch and tear. What's more, it can also keep the coatings' color from destroy.
Appearance: White powder
Melting point: 210-230 °C
Non-volatile: Min. 98.5%
Application
- HF68 may be applied both in pure epoxy and hybrid (epoxy-polyester) resin powder coatings
-The gloss from 5% to 10% of pure epoxy powder coatings and the gloss from 10% to 70% of hybrid powder coatings can
be easily obtained by using HF68.
-Used in hybrid powder coating, matt or semi-matt gloss can be achieved by replacing some of the polyester in the formulation
with an equivalent quantity of HF68.
Formulation and Processing Guidelines
| Item | 415 | 545 | 410 | 540 | 140 | 145 |
| Type | Epoxy Resin (EEW=850-1000 ) | Epoxy Resin (EEW=850-1000 ) | Polyester Resin (EEW=700-850) | Polyester Resin (EEW=700-850) | Polyester Resin (AV=30-35) | Polyester Resin (AV=30-35) |
| Matting Hardener,HF 68 | 30 | 50 | 35 | 55 | 30 | 35 |
| Flow agent | 10 | 10 | 10 | 10 | 10 | 10 |
| Pigment and Fillers,BaSO4 | 400 | 400 | 400 | 400 | 400 | 400 |
| Carbon Black | 6 | 6 | 6 | 6 | 6 | 6 |
| Degassing Agent, Bezoin | 3 | 3 | 3 | 3 | 3 | 3 |
| Gloss@60 Deg., % | 20-25 | 5-10 | 20-25 | 5-10 | 20-25 | 20-25 |
*Curing conditions: 12-15 Min.@190°C, 10-12 Min.@200°C
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent
Product Categories : Matt Hardener
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