NICCO / PRODUCTS / COMPOUNDS
THERMOSETTING / NON-THERMOSETTING
LEAK SEALING COMPOUNDS

Compound selection
by service reality.

NES compounds are selected by operating temperature, service fluid, pressure regime, and compatibility — not by generic product family.

TEMPERATURE
-100°C to 650°C
PRESSURE
Up to 250 bar
SERVICE FLUIDS
300+ Chemicals
CERTIFICATION
BIS 18159:2023
PRODUCTS RANGE / DOCUMENTED GRADES

Eight service families.
Twenty documented grades.

Use the index below for first-pass orientation, then use the wizard or send line data for engineering confirmation.

NES-1/2A / TYPE 1 (T)

Steam, Feed Water & Mild Chemical

Medium-temperature utility compound for steam, boiler feed water, ammonia, caustic and glycol service.

Temperature
100°C to 250°C

NES-1B leak sealing compound box
NES-1B / TYPE 2(t)

Water, Glycol & Mild Chemical

Low-to-medium temperature hydrocarbon and utility compound. Cost-effective for standard service.

Temperature
80°C to 200°C

NES-2B leak sealing compound box
NES-2B / Type 3 (T)

Saturated & Low-Pressure Steam

Saturated and low-pressure steam, reinforced with heat-resistant fibre.

Temperature
100°C to 250°C

NES-2C leak sealing compound box
NES-2C / Type 4 (T)

Hydrocarbon & Process Gas (HT)

Thermosetting compound for high-temperature hydrocarbon and HC-derivative service.

Temperature
160°C to 350°C

NES-2F leak sealing compound box
NES-2F / Type 5 (NT)

Superheated & HP Steam

Inorganic-based synthetic rubber with heat-resistant fibre. Standard for superheated steam.

Temperature
250°C to 450°C

NES-2G leak sealing compound box
NES-2G / Type 6 (T)

Critical & Ultra-HP Steam

Premium superheated steam compound, extending NES-2F envelope to 500C.

Temperature
250°C to 500°C

NES-2H leak sealing compound box
NES-2H / Type 7 (T)

High-Pressure Steam

Reinforced compound for high-pressure steam service under elevated injection pressures.

Temperature
200°C to 400°C

NES-2J leak sealing compound box
NES-2J / Type 8 (NT)

Saturated Steam & Condensate

Standard compound for saturated steam and condensate service.

Temperature
100°C to 300°C

NES-3A leak sealing compound box
NES-3A / Type 9 (T)

Crude, Fuel & Mixed Hydrocarbon

General-purpose hydrocarbon compound for medium-temperature service.

Temperature
80°C to 280°C

NES-4A leak sealing compound box
NES-4A / TYPE 10(T)

Light Fuels & Solvents

Cost-effective compound for light fuel and solvent service.

Temperature
0°C to 200°C

NES-5A leak sealing compound box
NES-5A / Type 11 (NT)

Cryogenic Hydrocarbon Gas

Cryogenic-rated compound for hydrocarbon derivatives and light gases.

Temperature
-100°C to 240°C

NES-5B leak sealing compound box
NES-5B / Type 12 (NT)

Cryogenic Aggressive Hydrocarbon

Reinforced with waxy synthetic polymer base for chemical resistance on aggressive HC derivatives.

Temperature
-85°C to 240°C

NES-5D leak sealing compound box
NES-5D / Type 13 (T)

Deep Cryogenic — LNG & Gases

Specialised cryogenic compound for the most demanding low-temperature service.

Temperature
-100°C to 180°C

NES-6B leak sealing compound box
NES-6B / Type 15 (T)

Acids, Caustic & Chemicals

Thermosetting compound for aggressive acid and chemical service at high temperatures.

Temperature
160°C to 400°C

NES-6C leak sealing compound box
NES-6C / TYPE 16(T)

Fuels & Light Hydrocarbon Gas

Broad-compatibility compound for ambient-to-moderate temperatures.

Temperature
0°C to 240°C

NES-7A leak sealing compound box
NES-7A / TYPE 17(NT)

Water, Air & Valve Gland

Engineered for valve gland leakage on water, steam, and air service.

Temperature
0°C to 200°C

NES-8A leak sealing compound box
NES-8A / Type 18 (T)

Sour Gas, H₂S & Amine

Specialised for aggressive sour and chemical service. Sour-gas-resistant formulation.

Temperature
100°C to 350°C

NES-9E leak sealing compound box
NES-9E / Type 14 (NT)

Specialised & Difficult Service

Specialised compound NES-5E(SPL) for difficult chemical service conditions.

Temperature
50°C to 350°C

NES-R2 leak sealing compound box
NES-R2 / Type 19 (T)

Re-Injection — Standard Temp

Re-injection compound for top-up of standard NES grades.

Temperature
100°C to 300°C

NES-R3 leak sealing compound box
NES-R3 / Type 20 (T)

Re-Injection — High Temp

Re-injection compound for top-up of NES-2F and NES-6B at 300°C to 450°C

Temperature
300°C to 450°C

COMPOUND SELECTION WIZARD

Answer the service questions.
Get a shortlist.

Compound Selection Wizard
Find the right compound

Provide the operating temperature and service fluid to shortlist standard NES compounds.

ENGINEERING SUPPORT

Unsure of compatibility?
Send line data. Engineering responds.