Analysis of the reasons for the unqualified sealant
Publisher: Oriental Rubber Industry Time：2022-3-1 17:43:33 hot:
Sealant is a kind of sealing material with certain adhesiveness. It deforms with the shape of the sealing surface, is not easy to flow, and has certain adhesiveness.
It is an adhesive that fills gaps in the configuration and acts as a seal. With anti-leakage, waterproof, anti-vibration, sound insulation, heat insulation and other functions.
It is widely used in the sealing of construction, transportation, electronic instruments and parts. Due to the wide variety of sealants, strict operation methods, and low market competition, the sealing effect of sealants is not good.
Let's analyze the phenomenon and reasons of unqualified sealant.
1. Phenomenon
(1) Design requires no neutral structural silicone sealant or a weathering sealant compatible with it.
(2) Use structural sealant instead of weather sealant, or a combination of both.
(3) It is not possible to provide the structural silicone sealant compatibility test report issued by a specially qualified testing and testing agency, but only the manufacturer's self-test report.
(4) Structural silicone sealants and weather-resistant sealants do not have durability guarantee certificates, and some even exceed the service life.
2. Cause Analysis
(1) The contractor uses counterfeit and inferior products and inferior products.
(2) Procurement personnel do not understand the performance of structural sealant and weathering sealant, and management personnel lack the necessary supervision knowledge, resulting in mixed use and misuse of projects.
(3) Consciously reduce the cost, and the glass glue does not entrust the test according to the prescribed procedures and contents.
