Test Methods for Viscosity of Adhesives ASTM D1084
The viscosity of free-flowing adhesives is determined using the ASTM D1084 test procedure. The internal friction of a moving fluid is described by viscosity, which is a measure of a liquid’s resistance to movement. Low-viscosity adhesives flow more easily than high-viscosity adhesives. Adhesive makers usually provide the viscosity and solid content to assist engineers in determining which product is best for a certain application.
The ASTM D1084 test method is used to determine adhesive viscosity. The adhesive’s fluid flow is also taken into account in order to suit the machine’s requirements. Viscosity is significant during the coating step because uncured adhesives react differently when “ran” across a surface. Adhesive makers usually provide the viscosity and solid content to assist engineers in determining which product is best for a certain application. Furthermore, viscosity is a valuable tool for determining material qualities such as molecular weight and density, both of which can affect flow behavior.
There are several test methods for determining the viscosity of Newtonian and near Newtonian flow characteristics. The following are the four types of tests that are covered:
➢ Method A of Testing:
Only adhesives that can provide 50 mL in a constant, unbroken stream from one of the cups made of brass, bronze, or other metals are eligible for Method A.
➢ Method B of Testing:
Method B is confined to materials with it or approaching Newtonian flow characteristics and is intended for measuring the viscosity of adhesives in the range of 0.05 Pa. s to 200 Pa. s (50 to 200 000 cP).
➢ Method C of testing:
Method C is primarily designed as a control method for determining the viscosity of adhesives with or approaching Newtonian flow properties.
➢ Method D of Testing:
Method D is primarily intended as a control method for determining the viscosity of materials with equivalent viscosities of less than 3000 cP and is confined to materials with or approaching Newtonian flow characteristics.
Sample adhesives are used as test specimens during the ASTM D1084 test procedure.
The viscosity of adhesives is reported in the SI unit and is considered as standard.
Complete identification of the adhesive tested, source, manufacturer’s code numbers, form, date of the test, date of manufacture, etc. is reported according to the ASTM D1084.
ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 is a standard test method for the analysis of sulfochromate etches solution used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
ASTM G65 measures the resistance of metallic materials to abrasion using the dry sand/rubber wheel apparatus. The quality, durability, and toughness of the sample are determined using this test. Metallic materials are ranked in their resistance to scratching abrasion under a controlled environment.
ASTM E2141 test methods provide accelerated aging and monitoring of the performance of time-dependent electrochromic devices (ECD) integrated in insulating glass units (IGU). This test helps to understand the relative serviceability of electrochromic glazings applied on ECD.
ASTM C724 test method is used in analyzing the quality and ease of maintenance of a ceramic decoration on architectural-type glass. This test method is useful in the acknowledgment of technical standards.
Send us a request
Process for testing
You share material and testing requirements with us
We ensure your sample pick-up in an ensured manner
We deliver test report to your inbox
Just share your testing requirements and leave the rest on us!