GB/T 36797-2018 in English
VALIDEpoxy resin joint sealant for anti-cracking in refurbishment
- Issued on:2018-09-17
- Implemented on:2019-04-01
- File Format:PDF
- Delivery:Within 1 day
$288.00
《GB/T 36797-2018装修防开裂用环氧树脂接缝胶》由TC185（全国胶粘剂标准化技术委员会）归口，主管部门为中国石油和化学工业联合会。
Introduction
Core framework of the standard and technological evolution
This standard establishes for the first time a complete technical system for epoxy resin joint glue for decoration, and subdivides the products into two categories: base reinforcement joint glue (anti-cracking reinforcement) and surface decorative joint glue (beautifying seam decoration), and achieves full life cycle quality control through 12 performance indicators and 8 types of hazardous substance limit requirements.
| Technical Dimensions | 2008 Version Reference Standards | 2018 Version Innovations |
|---|---|---|
| Classification System | Classification by Base Material | Triple Classification by Functional Part + Construction Method + Characteristics |
| Environmental Requirements | VOC≤5% | Added 15 Limits such as Phthalate Esters and Glycol Ethers |
| Durability Test | Conventional Aging Test | Wet Heat Aging + High and Low Temperature Alternating Cycle Test |
Analysis of Key Performance Indicators
1. Core parameters of bottom layer glue
- Tensile shear strength: ≥4.5MPa under standard conditions, strength reduction ≤30% after wet heat aging
- Unconstrained shrinkage: ≤0.4% after 21 days, effectively controlling curing deformation
- T impact peeling: ≤70mm in length, ensuring impact resistance
2. Special requirements for surface glue
| Characteristic type | Test items | Indicator requirements |
|---|---|---|
| Yellowing resistance | 168h△E* | ≤6.0 |
| Moisture curing type | Gloss retention | ≥60% |
| Glue gun application type | Extrusion | ≤3.0kN |
Hazardous substance control system
This standard adopts a graded control strategy: the base glue focuses on controlling VOC (≤5%) and halogenated hydrocarbons (≤2.0g/kg); the surface glue additionally adds heavy metal (lead ≤90mg/kg) and phthalates (≤1000mg/kg) limits. The detection method innovatively adopts:
- Gas chromatography-mass spectrometry (GC-MS) to determine organic pollutants
- ICP-MS to detect soluble heavy metals
Construction application guide
1. Key points for base glue construction
- Substrate treatment: concrete moisture content ≤8%, wood moisture content ≤12%
- Mixing ratio: A:B component error is controlled within ±2%
- Curing pressure: ≥0.1MPa for 48 hours
2. Precautions for surface glue
| Problem type | Cause analysis | Solution |
|---|---|---|
| Sagging phenomenon | Sag degree＞8mm | Select MQY type anti-sagging products |
| Accelerated yellowing | Ultraviolet irradiation | Select anti-yellowing products with △E*≤3.0 |
Typical case: A fine decoration project uses a combination of DTA type base glue + MQY surface glue. After 2 years of tracking and monitoring, the cracking rate of the joints has been reduced by 82%, and the VOC emission meets the requirements of GB 50325-2020 Class I civil buildings.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
GB/T 14732-2017 in English
Wood adhesives: urea-formaldehyde, phenol-formaldehyde and melamine-formaldehyde resins
2017-12-29 -
GB/T 44543-2024 in English
Epoxy adhesive for precast concrete segmental construction
2024-09-29 -
GB/T 27561-2011 in English
Styrene-butadiene-styrene block copolymers(SBS) adhesives
2011-12-05 -
GB/T 29593-2013 in English
Kraft paper adhesive tape for surface protection
2013-07-19 -
GB/T 42909-2023 in English
Electrically conductive adhesive tape for wireless terminal equipment application
2023-08-06 -
GB 33372-2020 in English
Limit of volatile organic compounds content in adhesive
2020-03-04
