High Aspect Ratio Sepiolite Fiber - for Anti-Cracking Construction Mortar & Wall Putty

• Customization: Available
• Shape: Fiber
• Product Name: Sepiolite Fiber
• Model NO.: HZ-sepiolite
• Other Name: Sepiolite Powder
• Color: White Gray
• Delivery Time: 5-12days
• MOQ: 1kg
• Keyword: Sepiolite Powder Price
• Package: 25kg
• Transport Package: 25kg/Bag; Customized Packaging
• Specification: 1-3nm; 325mesh
• Trademark: HZ
• Origin: China
• HS Code: 2530909999
• Production Capacity: 50000ton/Month

Product Description

Product Description

We offer sepiolite fiber—a natural mineral fiber specialized for refractory material reinforcement, insulation board production, and fireproof coating filling. This fiber stands out for its excellent heat resistance, flexibility, and compatibility with various industrial materials.
In refractory material reinforcement, sepiolite fiber plays a critical role in boosting durability and heat resistance. Refractory materials (used in furnaces, kilns, and industrial high-temperature equipment) often face extreme heat and repeated thermal shock, which can cause cracking or breaking. When mixed into refractory formulations (such as refractory bricks or castables), sepiolite fiber forms a flexible network within the material. This network absorbs the stress from temperature changes, preventing small cracks from forming and stopping existing cracks from spreading. Unlike some synthetic fibers that degrade at high temperatures, sepiolite fiber retains its strength even in intense heat, ensuring the refractory material maintains its structure for longer. 
For insulation board production, sepiolite fiber enhances thermal insulation efficiency and structural stability. Insulation boards used in industrial settings (like boiler rooms or furnace enclosures) need to block heat transfer while remaining strong enough to resist damage during installation and use. Sepiolite fiber's unique porous structure traps air, which slows down heat flow and significantly improves the board's insulation performance. It also adds rigidity to the board, preventing warping or bending when cut or installed around equipment. These boards are lightweight, so they don't add extra weight to building structures or equipment. 
As a filler in fireproof coatings, sepiolite fiber boosts fire resistance and adhesion. Fireproof coatings (applied to steel structures, industrial equipment, or building walls) need to form a protective barrier that slows flame spread and shields the underlying material from high temperatures. Sepiolite fiber mixes evenly with coating bases, creating a dense, heat-resistant layer that releases minimal smoke when exposed to fire. It also improves the coating's adhesion to surfaces, ensuring it doesn't peel off during a fire or regular use. 

Specification

Item	Value
Application	Brake Pads, Friction, Wall insulation etc.
Product  name	Sepiolite fibre
Size	0.5-5mm
Shape	Fiber ;Powder
Color	White;Gray
Usage	Building materials, Rubber, Brakes etc.
Packing	25kg/bag;customized packaging
MOQ	1kg
Port	Tianjin
Delivery time	7-15days

Why choose us

Application & Packing

Company Profile

Good reputation

FAQ

1. Who are we?
We are based in Hebei, China, start from 2015,sell to Domestic Market(30.00%),North America(20.00%),Southeast Asia(20.00%),South Asia(5.00%),Eastern Asia(5.00%),Western Europe(5.00%),Southern Europe(5.00%),Oceania(3.00%),South America(2.00%),Northern Europe(2.00%),Africa(2.00%),Mid East(1.00%),Central America(0.00%),Eastern Europe(0.00%). There are total about 51-100 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment
3.What can you buy from us?
Kaolin, Iron Oxide Pigments, Tourmaline, Silica, Colored Sand,etc
4. Why should you buy from us not from other suppliers?
We are the manufacturer of the minerals materials, especial in mica, iron oxide and diatomite powder. our company has professional development group, we can accpet OEM/ODM. And our products selled not only in our country but also in asia southeast popular.
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,CIP,FCA,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese