First of all, let’s clarify the definition of stagnant time. The non-flow time is the glueAfter the AB material is mixed, stir and start timing until the glue The time of non-flow is counted as the non-flow time of the glue. On the customer’s side, it is often called operable time.
Allow customers a suitable operating time, which can not only meet the normal use of customers, It can also improve customers’ work efficiency. Control the operational time,enables the glue to completely penetrate or bond the required profiles. The operational time determines the customer’s actual production requirements, Operation time is usually critical for customers period. Because, the reaction between the injection material and the adhesive will progress to the next stepCraftProcess. Since the next step of the process may be very different, Customer Users and manufacturers must agree on the operable time . Usuallyfor machine glue filling and manual glue filling, or for complex and simple profiles, the operating time requirements will be different. As long as the potting of the profile (especially for mass production) is completed after the specified operating time, the material has reached a certain degree of reaction with a certain hardness. According to customer requirements, the manufacturer can adjust the operable time. Operating times can also be shortened through a temperature-controlled curing process. The various thicknesses of the profile structure or surrounding materials in the profile also have an impact.
PolyurethaneThe reaction time of ab glue at different temperatures is relatively There is a big difference. The following is the non-flow time measured at different temperatures for a certain model of filter ab glue products:
Sometimes, customers will encounter the phenomenon that the glue curing time is too slow or even the glue does not solidify. So why is this? Mainly due to the following reasons:
1.Unbalanced ratio . Manufacturers generally design products in strict accordance with a certain proportion of glue. If there is an excess of raw materials, slow curing will occur. In severe cases, it may not cure. According to The glue can achieve the best performance by mixing it in a specific ratio and reacting fully. Therefore, if the proportion is out of balance, the proportion needs to be readjusted.
2. The ambient temperature is too low in winter, resulting in The viscosity of the glue increases, which affects the reaction time. Chemical reaction time is mainly affected by temperature and catalyst. If the operating time is longer due to temperature, there are two ways to solve it. The first is to increase the temperature, and the second is to add catalyst.
3. The glue has failed and the warranty period has expired. If this is the case, the only option is to replace the glue.
This productproduct is a white, bubble-free, water-free, room temperature curingPolyurethaneAdhesive, hasHigh bonding strength, good fluidity, fast solidification, no irritating odor flavor Features. Stability, resistanceold chemical, resistant font>Water has excellent performance and is suitable for plating plates, aluminum plates, Bonding, filling and sealing between metal materials such as non-passivated stainless steel plates and non-woven fabrics, filter paper and other materials; produced ProductMainly usedYesPartition, no partition, FFU , V medium and high efficiency filter , dust filter cartridges and other products. Finished product Comply with ROHS, REACH and other testing standards.
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