Liquid plastic glue for PVC windows: Cosmofen, Creative and others

Installation of PVC windows is a multi-stage production operation that requires compliance with many nuances and regulatory requirements.
The enclosing structure must ensure proper energy efficiency of the room, eliminate drafts, the spread of bacteria and the formation of mold.

To seal installation gaps after mechanical fastening of the window structure, polymer sealants based on silicone, acrylic or polyurethane are used. One such material is liquid plastic.

Description and technical specifications

Liquid plastic is a one-component transparent polymer with low viscosity. It has the properties of diffuse welding, almost instantly connects elements, creating a strong monolithic seam, almost invisible during external inspection. The frozen mass has the following characteristics:

• resistance to temperature changes;
• low heat conductivity;
• resistance to aggressive environmental influences;
• UV resistance;
• high strength;
• environmental friendliness;
• safety;
• long-term color retention.

In terms of composition, it is liquid plastic, which, penetrating into the structure of the parts being connected, after polymerization forms a monolithic connection with an even, dense structure.

After application, the mixture sets in 2-4 minutes, and complete hardening, providing maximum strength, occurs within a day.

Composition requirements

When using a substance, it is subject to a number of technological and operational requirements :

• 
  High level of adhesion to plastic and other building materials.

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• Increased resistance to temperature changes, regardless of where the substance is used.
• Mechanical strength of the material.
• No shrinkage with subsequent crack formation.
• Absolutely waterproof.
• Resistance against exposure to weakly concentrated alkaline and acidic reagents.
• Increased rate of polymerization and development of design strength.

Each adhesive composition is produced at the plant according to pre-developed specifications , which are issued after full-scale testing of the material. When purchasing a large batch, the manufacturer provides the client with a product passport, which indicates all the maximum operating parameters. When these indicators are achieved, liquid plastic does not lose the properties declared by the manufacturer.

Scope and limitations

Plastic polymer can replace most adhesives. The substance perfectly connects:

• plexiglass;
• polycarbonate;
• polyvinyl chloride;
• plastic;
• rigid PVC with seals and aluminum profile;
• polystyrene;
• polyethylene terephthalate glycol.

Some varieties of the product are suitable for bonding leather, glass, rubber, metal or ceramics.

More often, liquid plastic glue is used for PVC panels, when installing slopes, sealing seams, securing flashings and other window elements.

Despite its versatility, this series of adhesives has some limitations in use. It is not advisable to glue:

• Parts that will be in constant contact with water. The adhesive formula is not suitable for regular exposure to water.
• Porous materials, such as foam baseboards. The structure of foam plastic or other similar bases does not allow for high-quality diffuse welding. If you need to glue porous substrates, then before doing this they need to be treated with a special impregnation.
• Parts with different thermal expansion. If the thermal expansion of the elements being glued differs from the parameters of the glue, then over time the liquid plastic may peel off.
• Polypropylene. The material has low chemical inertness, so the adhesive does not provide full diffusion. During operation, the strength of the seams may decrease.
• Metal. Metal parts must have a plastic coating, otherwise the polymer will peel off.

If plastic connections are needed, then the product is not suitable. The adhesive composition is intended for making hard technical seams.

Types and approximate prices in Moscow

Despite the fact that plastic sealant was created relatively recently, the building materials market offers many varieties of polymer mixtures. They differ only slightly in additional characteristics.

Liquid glue Cosmofen

Adhesive for plastic windows Cosmofen is made on the basis of dissolved white PVC glue. Strongly connects parts when installing windows, increases thermal insulation. The Weiss company produces a line of Cosmofen liquid plastic mixtures for windows. Popular brands of sealants:

• Cocmofen 345. Used for sealing elements on rigid polyvinyl chloride. Cosmo PVC adhesive forms a compound that is resistant to aging.
• Cosmofen Plus. A quick-setting white mixture is used for fastening PVC window parts. Durable, easy to apply.

Liquid plastic glue Cosmofen Plus white 200 g costs from 270 rubles, and Cocmofen 345 – from 420 rubles.

Adhesive-sealant Masterteks

White polymer, weather resistant, universal. The adhesive sealant creates a strong monolithic connection.

Mastertex liquid plastic is available in tubes of 230 g. The cost of the product is from 300 rubles.

Lazer Bond

Lazer Bond liquid plastic glue liquid resin holds the bases together in 3 seconds. The kit includes an ultraviolet lamp, under the light of which the glue cures. Can be used when installing windows, for connecting parts made of metal, copper, leather or PVC. Laser Bond costs from 290 rubles. for 60 years

5 Second Fix

The manufacturer claims that 5 Second Fix liquid adhesive plastic connects any materials, including metal or combined substrates. Polymerization occurs in 5 seconds under the influence of an ultraviolet lamp, sold complete with glue. After hardening, the seam can be sanded or painted without compromising strength. The price of the product is from 490 rubles.

Nano glue liquid plastic

The packaging states that this is a super-strong plastic adhesive that can withstand loads of up to 160 kg. Nano plastic hardens under the influence of UV radiation from a light bulb, which is included in the kit. Does not leave stains and does not stick to your hands.

A device with a mixture dispenser and a built-in UV lamp is sold at a price starting from 1999 rubles.

GreenteQ PVC glue

Designed for fastening parts made of solid PVC. Heat-resistant, immune to ultraviolet radiation.

Used in the window industry or for plumbing installation.

Costs from 250 rubles.

Bondic

The package is a miniature welding tool with a UV emitter. The fill with a transparent base polymerizes only under the influence of ultraviolet radiation, becoming an almost eternal sealant. Glues any materials. Costs from 2000 rub.

What is enamel liquid plastic for?

But liquid plastic is not always glue. Plastic primers or paints are also available, for example:

• enamel primer PS-160;
• enamel Dufa Kunststoff Flussig.

A polymer mixture that combines the qualities of enamel and primer is needed for painting in a humid or aggressive atmospheric environment.

Not suitable for gluing elements or filling cracks.

Advantages and disadvantages of liquid plastic glue

Like any product, plastic glue has advantages and disadvantages. The advantages of the composition include:

• environmental friendliness;
• no color changes under the influence of external factors;
• hermetic filling of cracks and joints;
• greater strength after hardening due to diffuse welding (a monolithic part is formed);
• smoothing out all irregularities and gaps;
• resistance to sunlight;
• the ability to use household chemicals to care for glued surfaces;
• protection against fungus or mold.

Liquid glue for plastic has few disadvantages:

• Fast polymerization. You need to have time to distribute the product and combine the selected elements in a minute. A long delay causes the mixture to turn into a film and it is impossible to form a seam.
• Presence of toxic compounds. While the dried polymer is environmentally friendly and safe, the liquid composition has a strong, unpleasant odor that causes headaches or breathing problems. You have to work in a respirator in rooms with good ventilation.
• Inability to seal in areas frequently in contact with water.

A relative disadvantage is incomplete versatility. The glue is not suitable for creating elastic seams; it does not bond porous materials well without the additional use of special impregnations.

Security measures

It is necessary to adhere to some precautions when working with liquid PVC.

1. Wear a protective mask when applying the material.
2. Work with gloves, avoiding contact with the composition, since the gluing process is instantaneous.
3. It is not recommended to apply a layer of the product to areas with polyurethane foam. The composition should be applied precisely.

When working with the material, it is necessary to protect the respiratory tract with special masks to prevent the risk of cancer. Be sure to provide good ventilation in the room.

You shouldn't be afraid to mention the word "cancer." This means continuous inhalation of vapors or ingestion. Only in this case can significant harm be caused to health.

Technology of use

You can't glue it right away. First you need to prepare the grounds:

• remove contaminants;
• dry;
• degrease;
• wipe with a lint-free cloth (remaining lint on the base will interfere with adhesion).

As a degreaser, it is better to use a product of the same brand as the glue.

Sometimes craftsmen use acetone for degreasing. The solvent prepares substrates well, but is not suitable for all materials (some are destroyed when interacting with the acetone component).

After degreasing and drying, you can begin applying the polymer. Algorithm of work using the example of sealing seams of plastic windows:

• squeeze out a thin strip of product from the tube along the entire length of the gap (do not smear the material);
• Now wait fifteen minutes until it hardens.

Sealing of joints or gaps is completed.

When finishing slopes, gluing of parts will be required. Then, after distributing the glue over the base, you need to apply the element and hold it for a while. Then you will need to wait for the composition to dry.

Further surface treatment

You can remove Cosmofen residues from tools using a cleaner from the same manufacturer. If glue gets on the PVC base, wait until the drying time is complete and carefully cut off the excess with a thin blade.

Not completely dried glue can be wiped off with Cosmofen 597 or Cosmo CL-300.110 cleaner. But it is better to immediately carry out all the work carefully without any blots, because due to the high strength of the hardened composition, it is not always possible to remove its excess and stains.

Grouting of seams is started only after the composition has completely dried, so as not to break the tightness of the seams.

Precautionary measures

Plastic window adhesive contains cyanoacrylate. It is a harmful chemical that becomes inactive after polymerization. When working with polymer, you must follow safety precautions:

• carry out gluing in special clothing (gloves, respirator, goggles);
• provide ventilation of the premises during polymerization;
• Do not use plastic sealant near open fire (contains flammable substances).

People prone to allergies or suffering from chronic lung diseases should not work with polymerizing plastic mixtures.

Expert advice

Working with polymer sealant is not difficult, but beginners encounter minor flaws that affect the quality of the result. Here are some professional tips to avoid this:

• Speed ​​and attentiveness. The application site must be selected in advance, and then the required amount of mass must be squeezed out of the tube.
• Avoid foamed surfaces. After the foam subsides, the frozen plastic becomes deformed.
• Don't rush into exploitation. Hardening occurs after 15-20 minutes, but the diffuse welding is not yet strong. You can use the fastened structure no sooner than after 24 hours.

Using a plastic composition, you can make window slopes or repair household items.

Liquid plastic is almost universal and provides instant fixation. The product is moisture-resistant, durable and does not lose color under the influence of the sun.

Criterias of choice

When selecting PVC glue, you need to take into account the purpose of the purchase. In rooms with high humidity, compositions that are unstable to moisture should not be used. For outdoor installation, you should choose materials that can withstand changing weather conditions. If a product is needed for creativity, you should pay attention to safe and least toxic options without a strong odor.

Selection criteria:

• after drying, the seam should not smell;
• maximum polymerization time 10-15 minutes;
• the mixture is not too dense, but does not spread;
• possibility of processing with grinding tools;
• availability of certification;
• impact resistance.