The common fiberglass chopped strand mat products

Here are some common products which uses of fiberglass chopped strand mat and glass fiber composite

Aircraft: with high strength to weight ratio, glass fiber is ideal composite for airplane fuselage, propeller and high-performance jet nose cone.

The structure of Car and its bumpers, from cars to heavy commercial construction equipment, truck bed, even armored vehicles. All of these parts which are constantly exposed to extreme weather and often subject to wear and tear.

Boat: 95% of the boat is made of fiberglass, because of its ability to withstand cold and heat. Its corrosion resistance, there aren’t any pollution to salt water and atmospheric.

Steel: steel bridge decking substituted by glass fiber, it has the strength of steel, while resisting corrosion. For a wide span suspension bridge, if made of steel, they will collapse because of their weight. This has proved that the fiberglass guardrail stronger than their steel counterparts. From water and electricity transmission tower to the street light pole and street manhole covers and so on, it’s widely used because its strength, light weight and durability.

Household fixtures: shower, laundry tub, hot tub, ladders, and fiber optic cables.

Other: Golf clubs and carts, snowmobiles, hockey sticks, play equipment, skis and ski poles, fishing rods, travel trailers, helmets, etc.

Several Steps to Repair Fiberglass Shower Enclosures

Unlike those made from metal, fiberglass shower enclosures are durable to damage. An advantage of fiberglass enclosures is that they are much easier to repair. If a hole is 2-centimeters or smaller, you should have no trouble repairing the hole. Small cracks can also be repaired with relative ease.

Step 1 - Prepare for The Repair

Examine the dent, hole, or crack in your enclosure. If the cracks are in a load bearing area of the wall, then repairing the crack may not be the best option. Consider replacing your enclosure. If you are unable to patch a large hole or crack, you risk allowing moisture behind your enclosure, which will result in mold.

Once you have determined that the damage in your enclosure is small enough to repair, begin collecting your materials and tools. Purchase a small tub repair kit with fiberglass color that is compatible with the material around your damaged section.

Step 2 - Clean the Area

Use a sponge or clean rag to apply a non-abrasive cleaner to the area around the damaged section of your fiberglass shower enclosure. Remove grease, grit, or soap scum from the enclosure surface. After using the cleaner, remove any excess cleaner with your rag or sponge, then rinse away the surface with clean water. Dry the surface with a lint-free cloth.

Step 3 - Apply the Repair Putty

Apply a small patch of reinforcement tape to the dry surface surrounding the hole or crack. Mix the resin with the hardener to make a paste. Using a putty knife, spread the paste over the tape. Use the knife to feather the edges in a light scraping motion.

Step 4 - Finish

Refer to the application directions on your repair kit for the correct drying time. Once the resin has fully hardened, use wet-dry 600-grit sandpaper and water to sand the repaired area.

The tensile breaking strength of fiberglass chopped strand mat

Prescribed tensile breaking strength is mainly on account of the use of performance of mat,chopped strand mat strength value is not high, easy to tear, which is one of the good process of the chopped strand mat compared with reinforcement material. But If the mat itself has a small tensile strength, easily damaged for the final products, it will have difficulty to use. Foreign enterprises standards set forth in the tensile strength, and the index value is very high, not only to assess the average, but also the assessment test a single value, while JISIma 41l not specified.

In the standard-setting process, we have a large number of tests for the chopped strand mat tensile breaking strength, from the test values, the chopped strand mat tensile strength test values fluctuate quite large. And it does not follow a normal distribution, which gives value of the index has brought some difficulties. It’s different from Glass fiber fabric and glass fiber yarn, the value of chopped strand mat tensile breaking strength is mainly dependent on the adhesive bonding effect. So the number and quality of the adhesive bond and the binder uniformity becomes the mainly factors that influence chopped strand mat tensile breaking strength.

On the valuation indicators, in addition to reference the foreign companies standard, but a large number of domestic samples tested. Through test single-value to divide the range, and statistics the appears frequency and other methods to finalize the strength index values for different specifications of the mat. After consultation with users that meet the requirements.

Fiberglass Chopped Strand Mat’s Application

Fiberglass Chopped strand mat is a kind of glass fiber nonwoven reinforcing material by chopping continuous strands into chopped strands of certain length (50mm) and uniformly in combination with polyester binder in powder form or in emulsion form. It's characteristics is even distributing, same character, good wet-out in resins, good overlay capability, excellent mechanical physical and chemical capability.

Features:

1. Uniform mass per unit area, no stains and other defects debris,

2. Finished hardness strong, good flexibility.

3. Easy to completely soaked, little bubbles, good process performance.

4. Good mold filling and mold covering, suitable for forming the shape of complex products.

5. Good mechanical properties and chemical properties.

Based on these characteristics, chopped strand mat gradually replace some of the steel material, is widely used in various fields of ships, automobiles, electric meter boxes, furniture, building materials, transparent tiles, greenhouses, and other pipeline corrosion. Is a durable high-tech energy saving products.

Fiberglass chopped strand mat market reports

First, the characteristics of fiberglass products:

Fiberglass chopped strand mat is non-directional distribution, even distributing, and with excellent mechanical properties. Chopped strand mat with non-directional distribution that make up the storage of the woven roving has warp and weft distribution. At the same time, it also significantly increased the interlaminar shear strength of fiberglass reinforced plastic products, good cover mold performance, suitable all complex shape of products mold cavity. And good wet-out in resins, it can be arbitrarily cut, simple construction.  And smooth product appearance.

Second, the main application areas and related analysis of chopped strand mat at home and abroad.

Automotive interior market:

Mainly is the powder or emulsion with low gram. The gram from 80g/m2 to 250g/m2 range, on behalf of customers are Antun Salim Group, Italy TARGLASS sales of Fiat, the Korean market, the Japanese market (Honda, Toyota, etc.). China Jiangsu Association on behalf of clients Connaught.

Trunk Truck (including refrigerated trucks) market:

Mainly manufactured for Trunk Truck plates, customers include VETRORESINA, VETROGEL, CHO, Jinan sets.

Common hand lay application market:

Hand lay-up process application market is the most widely used market of chopped strand mat at home and abroad. The main demand is 225-600G / M2 powder and emulsion, the most European countries use emulsion, the customer in North area of China or as a powder-based.

Transparent tile market

Mainly is E glass chopped stand mat powder 225-600g/m2, all of them are transparent. There is a large market in our china mainland, mainly in the vicinity of Jiangsu and Hebei area. Foreign market is also a great amount, mainly in the Middle East, Indonesia and Thailand.

How much of fiberglass? What does the fiberglass chopped strand mat used to?

After April, many friends ask how much per ton of glass fiber? The reason is that the whole glass fiber industry prices increased. The market conditions has changed.

Fiberglass (in English is: glass fiber or fiberglass) is a high performance inorganic non-metallic materials with all kinds of types. Its advantages are good insulation, heat resistance, corrosion resistance, high mechanical strength, but the drawback is sex brittle, poor wear resistance. It is a glass ball or waste glass as raw materials at high temperature melting, drawing, winding, weaving and other crafts manufactured. The diameter of the monofilament is a few microns or twenty meters microns, equivalent to 1 / 20-1 / 5 of a hair, each bundle fiber precursor composed by hundreds or even thousands of filaments. fiberglass composite material commonly used as a reinforcing material, electrical insulating materials and insulation materials, circuit boards and other economic fields.

More extensive use of glass fiber, but because of the enterprises process problems within the industry production. Resulting in that the quality of the glass fiber is very different. Coupled with changes in the market, price fluctuations are relatively large. Typically glass fibers are made of semi-finished or finished products to transaction. Upstream products such as fiberglass roving, fiberglass cloth, fiberglass chopped strand mat. Downstream products such as various fiberglass sheets, models and a variety of fiberglass products and so on. The price of Fiberglass yarn in April is about ¥6,500 / ton, the price of glass fiber cloth ranging in ¥7800-10000 / ton. Fiberglass chopped strand mat price is about ¥8200-13000 / ton. Which decide as per the specifications of the customer’s actual needs and the factory production process. The good quality products price must not low.

The fiberglass is made to fiberglass chopped strand mat to sell that become more common. Fiberglass chopped strand mat can be used in a variety of glass products. Such as shipbuilding, automotive components, building components, anti-corrosion pipes, reinforced plastic profiles, sanitary ware, chairs, amusement machines, models and other fiberglass products manufacturing. My company (Sichuan sincere & long-term Complex material Co., ltd) specializing in the production of fiberglass chopped strand mat with high quality, which has a comparative advantage in the industry. Welcome all friends to inquiry.

Fiberglass manufacturing process

There are three manufacturing methods: “clay crucible method“, “on behalf of a platinum crucible method“, “furnaces method”.

"Clay crucible method" is the most primitive process, which main raw material is the waste of broken glass.

"On behalf of a platinum crucible method" is the widely used process method, the raw material is the glass balls.

Clay crucible method and substituting platinum crucible method is both called crucible drawing method. Crucible method, It’s also known as "two-step method", Which is use mineral raw materials according to the requirements of the recipe made of the glass beads, then sent on behalf of a platinum crucible drawing remelt Houla Si. This approach not only causes a secondary waste of energy, and poor single output, high production costs, It can’t satisfy a variety of species production (fiberglass tubes, fiberglass cloth, fiberglass sheet, etc.).

"Furnaces method" is the most advanced technology method, the raw material is "pyrophyllite" based slag mixture. Chiyaolasi is also known as "one-step", it does not need to be made of glass beads, but directly to the various components natural raw ore according to the proportion. And pull into pool kiln molten drawing in a same time. Compared with the crucible drawing method, a direct-melt method is a simplified process, reduced energy consumption, less platinum-rhodium alloy occupancy, low production costs and can meet series of advantages required such as the integrated multi-species, high-quality and so on.

Penetration rate of fiberglass chopped strand mat

Fiberglass chopped strand mat penetration rate is increased in the domestic standard. There aren’t any in the foreign standards.

Chopped strand mat is mainly used to produce fiberglass products. So the speed of the resin absorption and delivery has a large impact on the production of fiberglass. As our most application of fiberglass in hand lay-up area, this indicator is very important. Since 1992, we have been tracking the test method formulation of national standards, seek instrumented test methods, but so far the process is still under developed. Penetration rate criterion is based on the IS0 3717: 1975. "Determination time of fiberglass mat and woven fabric resin-impregnated " and (referred to as target the Tour de France) developed.

Its main principle is: the amount of resin is injected into the sample, with the resin immersion, the sample from opaque gradually become to transparent, though measuring the time to complete the process, required to express the sample impregnated rate. This method is simple, easy to promote, and facilitate corporate control test. Because different people has different ideas for sample "transparent" criteria, there are some subjective factors, but does not affect the material properties of the final judgment. Through repeated testing of the material, from the survey results, the test results of the repeatability and reproducibility is good. For now, this method is an effective, reliable and rapid test method. Through training inspectors and unified observation standards and other means to reduce the influence of subjective factors.

Hand lay-up FRP – the use of chopped strand mat

The process of hand lay-up for FRP

The surface condition of the hand lay-up FRP products。

In order to improve the value of the product, ensure the inner FRP doesn’t corrosion and prolong the product life. We usually make the article surface into a layer with pigmente paste(paste) and high level of resin. It can be just resin, and also be enhanced by surface mat. This layer is called gel coat layer (also referred to as surface layer or decorative layer).

The use of fiberglass chopped strand mat

When use chopped strand mat as reinforce materials, preferably using different specifications dipping roller operation, because impregnation roller to exclude air bubbles within the resin are particularly effective. If without such tools, we have to dipping with a brush, we should choose a good method to brush resin. Otherwise the fiber will be messed up and displacement. And resulting in uneven distribution and varying thickness. The chopped strand mat reinforce material shopped inside the deep corners. If we just use brush or roller dipping, it will difficult to close of bonding. So we should press smooth by hand.

When pasted, we use a roll coater glue coated on the mold surface and then manually spread the cut pieces of chopped strand mat on the surface of the mold and smooth, then glue the rubber roller, rolling back and forth, the resin glue immersion into the mat, then extrusion all glue from the mat with plastic foam roller and air bubble, then pasted the second layer.

If you encounter at the corners, you can manually torn the mat by hand, facilitate coated overlap, between the two mat pieces about 50mm. Many products can also be used in ply ways alternating chopped strand mat and glass cloth, Such as Japan company fish boat is a paste made of alternating method, it reported a good performance of the products made by the method.