Chengdu Guibao Science & Technology Co., Ltd.,

저역율은 50 실리콘 분명한 공동 밀봉제를 분류합니다

제품 상세 정보:
원래 장소: 중국
브랜드 이름: GUIBAO
인증: ISO
모델 번호: 668
결제 및 배송 조건:
최소 주문 수량: 590 밀리람베르트 : 2000 PC
가격: Negotiable
포장 세부 사항: 통큰소시지 :590 밀리람베르트 또는 들통 : 20 킬로그램
배달 시간: 4 일 일
지불 조건: 전신환
공급 능력: 20000pcs/4 일 일
  • 상세 정보
  • 제품 설명

상세 정보

색: 회색, 검정 재료: 실리콘 실란트
애플리케이션: 분명한 접합 밀봉, 갭 필, 포장, 공항 활주로, 다리, 고속도로 틈에 신장: 600%
이동 성능: +100~-50 주요 단어: 분명한 접합 밀봉, 갭 필, 포장
하이 라이트:

저역율 실리콘 분명한 공동 밀봉제

,

GB 668 분명한 공동 밀봉제

,

비바람에 견디는 구조 공동 밀봉제

제품 설명

Silicone Sealant for Concrete Joints Low Modulus Class 50

 

GB 668 is specially designed for the lasting weatherproofing seal of concrete joints. Because of its low modulus and excellent extension and compression recovery (+100/-50 percent of original joint width), GB 668 exhibits outstanding performance in highway, airport, bridge and other concrete joints where high movement occurs. Accelerated weather aging test proves that GB 668 is definitely qualified to withstand the temperature extremes and strong violet rays of concrete pavement. Once exposed to moisture in the air, GB668 begins its room temperature cure to form an elastic silicone rubber with lasting weatherproofing seal performance.

 

FEATURES

 

One part,ready to use as supplied ,good gunnability, dispensed directly from container into joints by hand or with an air-powered pump

Excellent unprimed adhesion and bonding to concrete

Highmovementcapability-able to accommodate the extension and contraction, and shear deformation of concrete joints without itself being destroyed

Lowmodulus-abletostretchinthejointwithlittleforce.Thiscan better protect the concrete surfaces from being damaged

Resilient-oncecured,stronganti-embeddingperformance,preventing gravels and other incompressible into the joints which may result in joint edge failure

Highlyelasticityandextensionrecovery-thesealantcanbestretchedto 100 percent or compressed to 50 percent of the joint width. When released, it will resume its original shape without splits or cracks

Excellenttemperatureextremeresistance-curedGB668hasastable performance over the temperature range from -60°C to +150°C

Excellent lasting weatherability-the Si-O-Si high energy bond can not be destroyed by UV or ozone

 

TYPICAL PROPERTIES

 

These values are not intended for use in preparing specifications.

Test Method Property Unit Result
GB/T 13477 (ASTM D 2377) Tack free time min. 60
GB/T 13477 (ISO 8394) Extrusion rate ml/min. 180
GB/T 531 (ISO7619) Hardness Shore A 30
GB/T 13477 (ISO 8339) 100% modulus MPa 0.4
GB/T 528 (ISO 37) Elongation at break(dumbbell type) % 600
GB/T 13477 (ISO 11600) Movement capability % +100~-50
ASTM C793 Aging resistance   Qualified
GB 18583-2008 TVOC g/L 53

*GB: Chinese National Standard

ASTM: American Society for Testing and Materials

ISO: International Standardization Organization

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIMITATIONS

 

GB 668 should not be applied:

In totally confined spaces as sealant requires atmospheric moisture for cure

To frost laden or damp concrete surfaces

When substrate surface temperature is below 4℃ or over 40℃

New concrete should be allowed to cure and dry for at least 28 days of good drying weather. For each day of rain that occurs during that period, an additional day should be added to the 28-day drying time. For fast completion and or high early concrete

mixes, please contact GB Technical Services

The sealant bead should be recessed below the surface of concrete surface to prevent abrasion from traffic and snow removal equipment.

The adhesion to substrates other than concrete should be checked before performing full-scale sealing.

 

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