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Ultrasonic Flaw Detection >> Couplants >> High Temperature Couplants
Sonotech : Sono 1100
High Temperature Couplant

SONO 1100 provides coupling for thickness gaging and flaw inspection at extreme temperatures. SONO 1100 will maintain acoustic coupling beyond 15 seconds to give ample time for obtaining good thickness readings. In most cases, the signal strength actually increases with time to the point of thermal decomposition.

Note: For best results, allow a few seconds of "melt time" before taking reading. Signal attenuation may occur if used at lower than recommended temperatures.

   Click Tech Info Button for a Guide to Couplant Selection

SONO 1100

- Provides an extended time window for longer inspections

- Non-toxic, non-irritating formula provides inspector safety

- Highest temperature rating

- Less smoke

- Medium viscosity paste

- NO Perfluorocarbons


Technical Specifications

Thickness Gaging *
(Less than 15 Second Contact)

700° to 1,100° F
370° to 593°C

Flaw Detection*
(1 - 5 Minute Contact)

700° to 900° F
370° to 482°C

Smoke Point
(Dense Plume)

850° F

Auto-Ignition Temperature




>3,000,000 cps

Water soluble





< 2,500 ppm


< 50,000 ppm

* A couplant's upper temperature range for short duration thickness gaging is higher than when used for flaw detection. When testing on vertical or overhead surfaces, a thicker grade of couplant is likely to stay in place, but thinner grade generally performs better on flat surfaces. No Sonotech couplants contain perfluorocarbons; thus "polymer plume fever" is not an operator hazard. Hot couplants can cause burns; therefore, gloves and goggles are recommended when working with hot surfaces.

** Viscosity equivalents: 4,000k = thick paste, 550k = stiff gel, 150k = pourable gel, 20k = thick liquid

Please call for quantity pricing


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Model Description Part No. Price Add To Cart

Sono 1100

Sono 1100, 4 oz. Tube


Please email us or
call 1-800-635-9108 or 913-432-7080
for current pricing.

Sono 1100

Sono 1100, 1 Gallon


Please email us or
call 1-800-635-9108 or 913-432-7080
for current pricing.

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