Sealant and structural adhesive testing instruments

Tape Initial Adhesion Tester

The initial adhesion tester is widely used in industries producing adhesive tapes, protective films, pressure-sensitive adhesives, labels, foam materials, and other adhesive products. The test procedure involves adhering the adhesive side of a tape sample to a test panel inclined at 30° (or another specified angle), then sequentially releasing steel balls of increasing size onto the sample and allowing them to roll freely. The ball number corresponding to a ball that remains adhered to the sample for at least 5 seconds is recorded as the tape’s initial adhesion value.

ISO Architectural Sealant Structural Adhesive Extruder

The construction sealant extruder is a testing instrument used to determine the extrudability of construction sealant materials. It employs compressed air to extrude a specified volume of sealant from a standard apparatus under defined conditions. For single-component sealants, extrudability is reported as the volume of sealant extruded per unit time; for multi-component sealants, the pot life is indicated by means of a graphical representation.

LBT-6S Adhesive Tape Thickness Gauge

This thickness gauge features a simple design, is easy to use, and is portable, allowing for handheld measurements.

LBT-498 Adhesive Shear Strength Fixture

This fixture, in conjunction with a testing machine, is used to determine the shear strength of silicone structural sealants for architectural curtain walls.

LBT-528 Anti-Sliding Test Apparatus

This apparatus is used to determine the slip performance of ceramic tile adhesives.

LBT-634 Adhesive Plug Method Flowability Tester

The plug‑flow test apparatus is used to measure the anti‑flow properties of adhesives. The adhesive is loaded into a hole of known dimensions and then pushed out by a piston on the test device, forming an adhesive plug. The apparatus is positioned vertically in the test environment, and the degree of plug sag is measured over a specified time period.

LBT-3045 Structural Plywood Thermal Durability Apparatus

The thermal durability apparatus for structural plywood is used to conduct thermal durability tests on structural plywood, determining the resistance of the specimen’s surface and adhesive layers to open-flame exposure.

LBT-8830 Water–Ultraviolet Irradiation Test Chamber

The water–UV irradiation test chamber is used for aging tests of various architectural sealing materials. The equipment features an adjustable mercury lamp height, an adjustable water level, automatic control of temperature and water level, and automatic timing of the irradiation period. Additionally, during irradiation, if an external power outage occurs and power is subsequently restored, the system automatically restarts and resumes the test.

LBT-JG Structural Sealant Compatibility Test Chamber

The structural sealant compatibility test chamber is used to evaluate the compatibility of structural assembly system components—such as weatherstripping, spacers, gaskets, and fixing blocks—with sealants, as well as to determine the test results. It is suitable for material selection in architectural curtain wall systems.

ZKJ-3 Type Vacuum Deaeration Mixer for Sealants and Structural Adhesives

The vacuum mixer is a new product developed by our company. Building on the original small-scale mixing machine, it has been equipped with a vacuum system.

Color-changing silica gel

Color-changing silica gel is primarily used to absorb moisture and prevent rust in instruments, meters, equipment, and other devices under sealed conditions; at the same time, its color change from blue to red upon moisture absorption provides a clear visual indication of the ambient relative humidity.

Floor adhesive 90° peel strength testing apparatus fixture

This fixture is suitable for testing the 90° peel strength of polyvinyl chloride plastic floor adhesive applied within buildings.

LBJ-01 Low-Temperature Flexibility Tester for Architectural Sealants

Used for determining the low-temperature flexibility of architectural sealant materials.

Brass ring for assessing the contamination of structural adhesives used in building sealants

This method is used to determine the polluting potential of architectural sealants and is suitable for assessing the extent of component leaching and diffusion in single-component solvent-based sealants. Other types of sealants may also be evaluated by analogy. The sealant under test is placed into a metal ring of specified dimensions, which is then positioned on a stack of filter paper. After a prescribed period, the extent of contaminant migration on the filter paper and the number of contaminated filter papers are measured; the sum of these two values—referred to as the migration index—constitutes the test result.

Building sealing materials, sealants, structural adhesives, adhesives, glass substrates, aluminum alloy substrates

Building sealing materials, sealants, structural adhesives, adhesives, glass substrates, aluminum alloy substrates

Glass rod for peel adhesion testing of architectural sealant materials

Adhesion‑peel test for architectural sealant materials: aluminum alloy plate, glass rod, stainless steel rod, metal wire mesh

Pneumatic Caulking Gun for Architectural Silicone Structural Sealant

Product Introduction: Pneumatic Caulking Gun for Structural Silicone Sealant Used in Construction — GB 16776-2005 “Structural Silicone Sealant for Building Applications”; GB/T 13477.3 “Test Methods for Building Sealant Materials — Particular Requirements for Test Substrates”; GB/T 13477.3 “Test Methods for Building Sealant Materials — Part 3: Method for Determining the Extrudability of Sealant Using Standard Apparatus.”

Adhesive tape 180° peel strength testing apparatus; tape 90° test fixture

It is commonly used with tensile testing machines and is suitable for 90° peel tests of adhesive tapes, labels, and flexible circuit boards.

Adhesive Curing Speed Wedge-Groove Device

This device is designed for testing the curing rate of single-component polyurethane adhesives used for bonding and sealing automotive windshield and side window glass. It is manufactured from aluminum alloy, which is corrosion‑resistant and easy to use.

LBJ-02 Adhesive Plug Method Flowability Tester

The plug‑flow test apparatus is used to measure the anti‑flow properties of adhesives. The adhesive is loaded into a hole of known dimensions and then pushed out by a piston on the test device, forming an adhesive plug. The test apparatus is positioned vertically in the test environment, and the degree of plug sag is measured over a specified time period.

Structural Adhesive Surface Drying Time Tester

This product is used to determine the surface-drying time of architectural sealants. The principle involves filling a standardized mold with the sealant sample under specified conditions and assessing its degree of dryness by applying a release film or by finger touch. The report indicates the time required for the release film or fingers to remain free of adhering sealant.

Structural Adhesive Elastic Recovery Measuring Ruler

This ruler is used to measure the elastic recovery rate of butyl rubber waterproof sealing adhesive tape and is made of 304 stainless steel, with clear and accurate graduations.

Test apparatus for assessing the surface cleanliness of structural adhesive and ballast particles

This instrument is used to determine the surface cleanliness of railway ballast, specifically the mass percentage of dust, soil, and other foreign matter adhering to the particle surfaces of railway ballast products. It consists of a 10‑L acrylic container and a P30 glass filter.

Structural Adhesive Fixed-Extension Bonding Fixture

This fixture is used to stretch the specimen to the required width and secure it with the specified constant‑extension shims.

Pressure-regulated air source for structural adhesive extruder

The extrudability pressure‑stabilizing air‑source controller for architectural sealants is one of the testing instruments used to measure the extrudability of such materials, and it is designed for use in conjunction with a standard extruder or a single‑component cartridge‑type caulking gun.

Structural adhesive metal mold frame

Structural adhesive metal mold frame, 130×40×6.5 mm, 130×40×8 mm

Bonded tensile–shear strength of structural adhesive for anchorage using the steel sleeve method

It is used for determining the tensile–shear strength of bonded ribbed reinforcing bars (or anchor bolt studs) to steel sleeves in fast‑curing structural adhesives, as well as the tensile–shear strength of polymer mortars and composite mortars.

Structural adhesive density metal ring

This instrument is used to determine the density of sealants for architectural and civil engineering applications. The metal ring method is suitable for non‑sagging sealants, while the metal mold frame method is applicable to both non‑sagging and self‑leveling sealants. The principle involves filling a metal ring or a metal mold frame with the sealant to form a test specimen; the mass of the metal ring or mold frame together with the specimen is measured in air and in a liquid before and after filling, from which the sealant’s density is calculated.

Structural adhesive density metal mold frame

This instrument is used to determine the density of sealants for architectural and civil engineering applications; the metal ring method is suitable for non‑sagging sealants, while the metal mold frame method is applicable to both non‑sagging and self‑leveling sealants.

Structural Adhesive Density and Sag Test Apparatus

Under specified conditions, a non‑dripping sealant is placed into a mold of prescribed dimensions and held in either a vertical or horizontal orientation at various temperatures for a defined period; the length of the material extruded from the mold’s end is then reported.