GLUE LEUCONAT, 1,1 kg

pour on the basis of polyisocyanates is kind of polyurethane adhesives.

APPOINTMENT:

for strong compound of metals (steel, cast iron, aluminum and its alloys, bronze, brass, duralyuminiya; less strong connection turns out with copper, magnesium and its alloys)

and not vulcanized rubbers from butadiene nitrile, chloroprene and natural rubbers with the subsequent their curing,

- as soil when drawing on steel of corrosion-resistant rubber coating;

- as curing agent (hardener) in rubber adhesives of cold setting.

It is applied in production of cuffs of saylent-blocks, shock-absorbers, during the gumming of the chemical resistant equipment, rubber cover of shaft, etc.

ADVANTAGES:

- high-strength;

- the vulcanized adhesive film possesses resistance to kerosene, benzene, mineral oils.

STRUCTURE: Clay Leykonat on TU 2473-002-36733310 (or TU 6-14-95-85) represents himself solution in dichloroethane 4,4', 4' '-trifenilmetantriizotsianata.

TECHNICAL CHARACTERISTIC:

Appearance: liquid from violet till henna-red color.

Mass fraction 4,4', 4' '-trifenilmetantriizotsianata, %, within 20±1

Mass fraction of insoluble impurity in dichloroethane, %, no more than 0,1

Anchoring strength of rubber of brand 3826C with steel of brands 3 or 20 and with brand D-16, kgf/cm2 aluminum, not less than 40

Anchoring strength of rubber of brand 9-2959 with steel of brand 3 or 20, kgf/cm2, not less than 40

Durability when flaking glue compound of unrvulcanized rubber 3826 with metals when carrying out testing in accordance with GOST 14760-69 makes not less than 4 MPas.

Drying time no more than 40 min.

And N S of T of P U of K Ts I I on use of glue Leuconat:

(The recommendations about pasting stated below are developed NIIRP (Moscow) and are in detail stated in the methodical instruction of this institute behind number I-9-4-65.)

Process of pasting of rubber with metals includes three stages:

- surface preparation of samples,

- spread,

- cure of an adhesive and endurance of the stuck together products under pressure.

Pasting has to be made in the room equipped with all-exchange supply and exhaust ventilation at relative humidity of air in the working room it is not higher than 60%.

Connection durability strongly depends on extent of preparation of adherend surfaces.

METAL PREPARATION

Before pasting metal details opeskostruivat, steel and brass details after opeskostruivaniye wash out gasoline.

Duralumin after processing by sand is subjected to anodic oxidation in sulphuric acid.

RUBBER PREPARATION

Rubber has to be svezhevaltsovanny. Before fastening to metal rubber is wiped with the napkin moistened in galosh gasoline and dried on air within 10 - 15 minutes.

SPREAD AND CURING

Glue is applied only on metallic surfaces (on rubber surfaces glue is not applied) by means of brush, the roller or tampon.

After spread of detail dry within 30-40 minutes at temperature 18-30os or 10-30 minutes at temperature 30-45os,

then maintain in drying chamber within 1 hour at temperature of 150 ° C.

After this time samples cool and cover with glue twice, drying after each drawing within 30 minutes at 18-30os or 10-30 minutes at 30-45os.

Then adherend parts connect and subject to hot cure in the press within 30 minutes at temperature of 145 ° C.

REFERENCE: It is impossible to maintain glue over 4 h as it decays from air moisture. Cure of an adhesive happens at rubber vulcanization temperatures (150-155 °C).

*** It is allowed to apply one thin film of glue at less responsible pasting.

Then it is dried within 30-40 minutes. To make spread indoors at temperature (22±2) ºC and relative humidity no more than 65%.

To carry out curing in compression mold at temperature (143±3) ºC and pressure of 25 kgfs/cm2 within 30 minutes for rubber brands 3826C and 20 of minutes for brand 9-2959 rubber.

To subject the stuck together details to loadings not earlier than in 6 hours after curing.

WARRANTY PERIOD of STORAGE of 18 months in densely closed ware at temperature from 5 to 20 °C in the dark, dry room.

PACKING: 1,1 kg