VITEF-1NT liquid polysulfide polymers-based sealant

VITEF-1NT liquid polysulfide polymers-based sealant

VITEF-1NT liquid polysulfide polymers (thiokol)-based sealant is a composition consisting of three components: base (sealing) paste, hardening (curing) paste, and a curing accelerator. After mixing the components, the sealant irreversibly transitions into a black rubber-like material (other color shades are not possible). VITEF-1NT sealant is capable of curing at a temperature not lower than 18 °C. VITEF-1NT sealant features good deformability, high oil and petrol resistance, good resistance to UV radiation, oxygen, moisture and air impermeability properties. Due to its liquid polysulfide polymer base, the sealant is resistant to crude oil, petroleum products, acids, alkalis, salts and solvents. It has increased adhesion. The sealant with “NT” index is supplied to the aviation industry


VITEF-1NT thiokol sealant is designed for surface and seam sealing of riveted, welded and bolted joints, aircraft structures, instruments and other products, repair of aircraft equipment. The sealant is recommended for use in contact with non-anodized aluminum alloys, magnesium alloys, cadmium-plated and bare steel.



Specification 38.1051291-84



  1. good deformability;
  2. high oil and gasoline resistance;
  3. good UV and oxygen resistance;
  4. moisture and air impermeability.

Technical characteristics




Pot life, h, within the range of


Nominal tensile strength, MPa, minimum


Elongation at break, %, minimum


Relative residual deformation after breaking, %, maximum


Shore A hardness, units, minimum


Bond strength when peeled from D-16 anodized alloy, kN/m, minimum


Working temperature range, °С

– in air environment

– in TS-1 type fuel environment


– 60 to + 150

– 60 to + 130


Base paste – metal container,

Curing paste – plastic can,

Curing accelerator – plastic bag.

Guaranteed shelf life:

Base paste – 6 months,

Curing paste – 3 months


The product is manufactured according to the Specification. The product meets the stated information within the shelf life and subject to storage conditions.