Functional Filler Surface Treated Wollastonite, Long Needle Wollastonite Products, Unique Mineralsource, High Aspect Ratio.

• Certification: ISO
• Technique: Calcined Kaolin
• Application: Paper, Ceramic, Refractory, Rubber&Plastic
• Shape: Powder
• Customizaion: Available
• Color: Bright White
• Model NO.: WL720
• Odour: Odorlessness
• Environmental Protection: Comform with Regulation of RoHS Reach
• Whiteness (%): 91.58
• Refractive Index: 1.63
• Transport Package: 25kgs/Bag; 1000/500kg/Bag
• Specification: SiO2
• Trademark: GreenThinking
• Origin: China
• HS Code: 2507001000
• Production Capacity: 30000 Ton /Year

Product Description

Description: GreenThinking® WL with surface treatment and activation is refined from selected natural silicone
mine of long needle wollastonite by Poweflex company


Applications:
       GreenThinking® WL is wildly used in industries of rubber, functional plastic, coating and
friction materials.
      The strict internal quality control process makes GreenThinking® WL have uniform
chemical purity and stability of the particle size distribution. Good chemical activity of
GreenThinking® WL make it became functional filler in many products.


Key benefits:
     Stable chemical composition, high whiteness
     WL series cover all kinds of high quality long needle wollastonite products, unique mineral
source, high aspect ratio.
     PH value close to neutral and advanced production technology of special silane treatment
makes high coating rate.
    Good tensile strength, good elongation at break, low compression set, good oil resistance,
high rebound and other good mechanical properties and good wear resistance in rubber
and plastic industry.
    It improves corrosion resistance, chemical inertia, heat resistance, mechanical properties,
and reduces cracking and use in industrial coatings,
  


Typical properties & Test Formula:

Item	Porperties	WL720	WL820
Particle size and Physical Properties	Whiteness (%)	91.58	90.98
	Refractive index	1.63	1.63
	BET(m2/g)	0.46	1.06
	Specific Gravity  (g/cm^3)	2.80	2.80
	Heat Loss (Wt,%)	0.25	0.23
	Oil Absorption (g/100g)	45	55
	PH (10% slurry)	8	7.8
	Median Particle Diameter  ((D50) µm) %	8.77	4.40
Chemical Content (%)	SiO2	50.23	51.28
	CaO	46.22	45.17
	Fe2O3	0.24	0.23
	Al2O3	0.21	0.23
	MgO	0.83	0.85
	LOI	1.68	1.38

 

Our factory:

Our testing equipment

 

 

Dlivery & Shipment:

FAQ:

Q: Are you a factory or trading company?
A: We are  rubber raw material manufacturer and owned 3 factories.

Q: Where is the loading port and How do you ship the goods?
A: Our factory is nearby Shanghai Port, but loading port can be negotiated. We could ship by sea, by air or by express(EMS, UPS, DHL, TNT, FEDEX and etc). Please confirm with us before placing orders.

Q: How can we guarantee the products' quality?
A: All the products must be tested refers to key specifications during the production and final inspection before shipment.
 
Q: What about the lead time?
A: It depends on the order quantity you place the order. Usually sample needs 5-8 working days, mass production needs 15-30 days .