How to install waterproof zippers and airtight zipper.

How to install waterproof zippers and airtight zipper

PROCESS OF INSTALLING: The front and the back side of the zipper are ready to be installed and applied on fabric base or with a POLYURETHANE and PVC coating. Both sides are easily glued to a NEOPRENE support or other Rubber Bases.

The following processes are recommended:
GLUING: glues function easily and perfectly. Recommend use black witch Glue for neoprene.
SEWING ON: Stitches must be covered with compatible coating to make the whole set waterproof.

For 8 TZ CR airtight zipper, recommend use the following two methods to connect it with your products.

1. Gluing: Metal water/air tight zippers can be glued into applications with adhesives compatible with the zipper tape and substrate material.
Typically, neoprene based adhesives are used with CR tape zippers when neoprene fabric is used in the application. The zipper with PU or PVC tapes will require different adhesives depending on the application material. Testing the compatibility of the adhesive, application material, and the zipper is strongly recommended.

2. Sewing & seam sealing: If a zipper is sewn into an application, the sewn seam must be covered with seam seal tape to prevent liquid or air leaks.

For 5# & 8# TPU waterproof sealed zipper, recommend use the following two methods to connect it with your products.

1. RF welding: RF Welding (Radio Frequency, Dielectric, High Frequency Welding) is a process in which similar polymer materials are bonded together using radio waves. Zippers made of PVC and TPU materials are used in applications where the zippers are attached to similar materials using RF welding techniques. The RF machine settings are dependent on the type and thickness of the material used in the application. Any welding process or substrate material must be tested for compatibility with the zipper. The zipper is typically welded to the inside of the garment and seam sealed on all edges to prevent liquid or air penetration.
2. Hot welding: Hot air can be used to fuse two similar or compatible materials together. A zipper made from TPU tape is attached to materials with hot air welding in some applications. The materials used and machinery used must be tested with the zipper. An additional hot melt adhesive may be required as a carrier between the zipper and the application material. The zipper is typically welded to the inside of a garment and seam sealed on the edge to prevent liquid or air penetration. Heat above 70°C could possibly damage the molded top, bottom stops or chain. Care should be taken to prevent the movement of the heated zipper or damage may occur to the molded top or bottom stops.

Related Information

Where can use waterproof zippers

January 30, 2023

Cover: navigation engine, electropult, weapon ammo, exploder, and chemical, missile, airplane, important instrument and container.

Protection: space suit, diving suit, immersion suit, life jacket, fishery suit, protective clothing, decompression clothing, radiation protective

clothing.
Others: air lock room, water walking ball, tent, life raft, survival instrument, shipping instrument, hovercraft, water bed and so on.

Difference between 8# TPU waterproof zipper & 8TZ CR airtight zipper

January 29, 2023

Difference between 8# TPU waterproof zipper & 8TZ CR airtight zipper.

Different waterproof zipper tape, 8 # TPU zipper with TPU tape, and 8 TZ CR zipper with Neoprene.
Neoprene (also polychloroprene or pc-rubber) is a family of synthetic rubbers that are produced by polymerization of chloroprene. This is the same fabric used by scuba divers and surfers for their wetsuits. It a high-quality material that holds up during competitive sports. It has several desirable features: Strong and resistant to tears, Completely waterproof and repels spills, Comfortable feel that does not irritate the skin. Neoprene exhibits good chemical stability and maintains flexibility over a wide temperature range. Neoprene is sold either as solid rubber or in latex form and is used in a wide variety of applications, such as laptop sleeves, orthopaedic braces (wrist, knee, etc.), electrical insulation, liquid and sheet applied elastomeric membranes or flashings, and automotive fan belts. Neoprene is produced by free-radical polymerization of chloroprene. In commercial production, this polymer is prepared by free radical emulsion polymerization. Polymerization is initiated using potassium persulfate. Bifunctional nucleophiles, metal oxides (e.g. zinc oxide), and thioureas are used to crosslink individual polymer strands.

Thermoplastic polyurethane (TPU) is an elastomer that is fully thermoplastic. Like all thermoplastic elastomers, TPU is elastic and melt-processable. Further, it can be processed on extrusion as well as injection, blow and compression molding equipment. It can be vacuum-formed or solution-coated and is well suited for a wide variety of fabrication methodologies. Thermoplastic polyurethane (TPU) is any of a class of polyurethane plastics with many properties, including elasticity, transparency, and resistance to oil, grease and abrasion. Technically, they are thermoplastic elastomers consisting of linear segmented block copolymers composed of hard and soft segments.

how to fix and clean Airproof Zippers

December 28, 2022

Airproof zippers are zippers that have been specially designed and treated to resist damage from dust, chemical fumes, gases and above average atmospheric pressure. Usually made out of vulcanized chloroprene rubber, airtight zippers find use in a wide variety of industrial and chemical applications (e.g. decompression clothing, space suits, immersion suits, marine sportswear, etcetera).

Due to the nature of their construction, airtight zippers should be handled and treated differently from normal zippers. Here are a few tips on how they can be properly fixed and cleaned.

Fixing A Broken Zipper
The zipper can break if the cross-tension on the zipper chain is too high. Fortunately, this can be easily fixed.

①After cleaning the chain, check if the zipper is broken all the way down to the stopper. If so, read on.
②Slowly close the first inch of the zipper by hand. Make sure that the slider is in a closed part of the chain and pull the slider to the stopper.
③Open and close the zipper a few times and add wax on the chain for further lubrication.

Removing Dirt/Sand/Grime
Dirt, sand, and grime can cause the zipper to unnecessarily tighten and malfunction.

①Brush using a small soft brush or piece of cloth both the inside and outside of the zipper to ensure that there are no dust or dirt particles attached.
②Clean the zipper using a solution made out of mild soap and water, then rinse the zipper with clean water.

Applying Lubrication
①Fully open the zipper and apply the wax directly on the chain. But be careful not to apply too much wax. Space the wax application every four inches or so.
②Open and close the zipper several times to spread the lube.
③Wipe off the excess with a soft cloth.

How to Care for Drysuit Zippers

December 28, 2022

The airproof zipper is the most sensitive part of a drysuit and, as such, it requires some care after use. With proper maintenance, drysuit zippers can last a very long time.

Take a look at some of the steps that can be taken to keep the drysuit zippers clean and operating smoothly.

Cleaning the Drysuit
After each use, the suit needs a good cleaning to make sure that salt and other contaminants get washed out of the zipper. It’s important to wash off the entire drysuit — both inside and out and make sure that any sand or dirt that has accumulated in and around the zipper is thoroughly washed off. If a piece of dirt gets stuck in the zipper, do not try to force the zip to close — clean it first and then zip the drysuit up.

Never machine wash or dry clean the drysuit — this can damage the zippers.

Once the drysuit has been washed, it’s best to hang it up — either with the help of a drysuit hanger or upside down so that it is thoroughly drained.

Storing the Drysuit
Store the drysuit in a cool or dry place — high temperatures and humidity can cause damage to the zipper.

When storing the drysuit keep in mind that it’s best to place it on a hanger in the upright position. However, if this is not convenient, make sure that the zipper doesn’t fold in too many places and. Store drysuits with metal zippers open while you should store drysuits with plastic zippers closed.

If the drysuit won’t be used for a while, a few steps can be taken to keep the zipper in the best possible shape while it is stowed away. One of the most important steps is to cake a layer of paraffin or bees wax or a specially designed lubricant on the zipper. This will keep the zipper flexible and easy to operate whenever it is used again. However, the use of wax should be tailored to the type of zipper on the drysuit-metal or plastic. Run a block of paraffin or bees wax over the metal zipper teeth. But do not wax the plastic zipper teeth. Apply some petroleum jelly over the surfaces near the end stop.

The main application for 8TZ CR close end airtight & waterproof zipper

December 28, 2022

The main application for 8TZ CR close end airtight & waterproof zipper

The 8TZ CR close end airtight & waterproof zipper can be used for below products:

Dry suit

Chemical protective suit

Water walking ball

and other sealed suit and products

How to use the gasproof zipper of the packraft?

December 28, 2022

Once dry, it is very important to store the gasproof zipper fully closed in a relaxed position, not pinched or folded. Take care of that you should not to scratch or stretch the zipper when loading.

Before storage clean with mild soapy water, rinse, dry, lubrifiant! Lubricating the zipper will keep the rubber from drying out. Make sure zipper is dry, lubed, fully closed, and not folded or pinched for storage.

When packrafting with your packrafter friends, you should always carry zipper lubrifiant in your repair kit, it is essential for the proper function and longevity of your zipper. In addition to ensuring proper function of the airtight zipper , the lubrifiant protects the gasproofzipper from drying out and from UV damage. How to care for and storage the airtight zipper. Dry your zipper. Bacterial growth is your zipper’s biggest enemy. Bacterial growth will cause the rubber of the zipper to crack and leak. It is very important to fully dry your zipper after each use. The cloth backing of the zipper holds the most water. Dry the airtight zipper by leaving it open for a day in a dry area, and longer when using your zipper in warm or tropical fresh waters. In wet/ humid areas you may wash the zipper occasionally with mild soapy water. Rinse well. Once dry, it is very important to store the zipper fully closed in a relaxed position, not pinched or folded. Take care of that you should not to scratch or stretch the zipper when loading.