NS41 High Temperature Silicone Sealant Non-toxic, Odorless, VOC-free Environmentally Friendly Adhesive

• Customization: Available
• Application: Construction
• Bonding Function: Structural Adhesive
• Model NO.: HM-NS41
• Color: White or Others
• Composition: Organic Material
• Morphology: Smooth Paste
• Classification: Room Curing
• Characteristic: Oxime sealant
• OEM: Available
• Density: 1.50±0.05g/ml
• Surface Drying Time: ≤2h
• Hardness: Shore A 40±5
• Ultimate Elongation: ≥100%
• Transport Package: Box
• Specification: 85ml 300ml 600ml 200L
• Trademark: Howell
• Origin: China
• HS Code: 3506100010
• Production Capacity: 100000-1000000 Pieces

Product Description

Product Description

 

Properties Uncured

Property	Value	Test Method
CuringType	MoistureCuring,Oxime Type	-
Color	Red	-
Density (g/ml)	1.50 ± 0.05	GB/T13477.2
Sagging (mm)	< 0	GB/T13477.5-2003
Surface Drying Time (h)	≤ 2	GB/T13477.5-2003
Curing Depth Rate (24h,mm)	3	-
Complete Curing Time (50±5% Humidity, 23±2°C)	3 days	-

After 72 Hours Curing at 50±5% Humidity, 23±2°C:

Property	Value	Test Method
Hardness (Shore A)	40 ± 5	GB/T531-1999
Tensile Modulus at 100%Elongation (MPa)	No Failure	GB/T13477.8-2003
Tensile Modulus (MPa)	≥ 1.8	GB/T528-2009
Ultimate Elongation (%)	≥ 100	GB/T13477.8-2003

*The above data is tested under 25ºC and 50% relative humidity.
*Standard color is red, other colors are available upon request.

NS41 high-temperature silicone sealant is a single-component, neutral-curing, high-modulussilicone rubber. It offers excellent elasticity and displacement deformation capability, ensuringstrong adhesion to various building materials. This sealant provides superior resistance to oil, aswell as extreme temperatures, maintaining its properties across a wide temperature range of-60°C to 280°C. For short periods, it can withstand temperatures up to 320°C.
 

Application

Sealing and bonding between materials at temperatures below 300°C
Automobile engine, transmission, oil sump
Bonding of chimney pipe
Other general purpose caulking, waterproof sealingRestrictions on use
It is not recommended to be used in places where water is immersed for a long period oftime
Not recommended for structural surfaces that come into direct contact with foodstuffs
Not recommended for use on medical instruments

 

Usage Guidelines

It cannot be used for structural assembly
Do not use on surfaces where plasticizers or solvents may leak out, as this may cause damage to the sealant
It is not recommended to use it in a completely sealed space, which will cause it to not be able to cure completely due to lack of moisture
It is not recommended to use it in places that have been immersed in water for a long time
It is not recommended for structural surfaces that will come into direct contact with food
It is not recommended to use it on medical devices.
 

Construction

1. Cleaning of substrate surface

(1) The purpose of surface treatment before bonding is to remove oil, dust, surface damage and loose natural oxide film on the surface of the base material during the production and transportation process, so as to roughen the surface of the base material and form a surface suitable for mechanism embedding. morphology, while improving surface chemical properties and improving durability under the influence of stress environmental factors.

(2) Cleaning solvents are usually isopropyl alcohol, m ethyl ethyl ketone, and xylene. The cleaning cloth should be white, clean, soft, non-linting cotton.

(3) Use the "double cloth wiping" method to clean the surface of the substrate. Soak a clean cloth with solvent. Wipe the surface of the substrate in only one direction. Before the solvent evaporates, immediately use a second cloth with a clean dry surface. Wipe the solvent off the surface of the substrate.

(4) Do not put the soaking rag into the container for soaking, otherwise the clean solvent will be contaminated and the cleaning effect will be affected.

(5) Only clean the bonding and sealing construction part within 1 hour each time. Do not expose the cleaned substrate surface to the air for too long.

2. Make a bet
Use plastic tape to cover the surface near the interface to ensure that the sealing working lines are perfectly neat.
Cut the mouth of the hose, install the pointed tube, and then cut it at a 45° angle according to the size of the gap.
Install the sealant gun and press out the sealant along the gap at a 45° angle to ensure that the sealant is in close contact with the surface of the base material. When the joint width is greater than 15 mm, sealant needs to be applied multiple times. After gluing, trim the surface with a knife to remove excess sealant, then tear off the tape. If there are stains, use a damp cloth to remove them.

3. Pad material
Open-cell polyurethane or closed-cell polyethylene foam padding rods and polyethylene materials are recommended lining materials. Prevent sealant from sticking on three sides.

 

Storage and Shelf Life

Store the original sealant in a dry place, the temperature should not be higher than 27 degrees, the storage period is 12 months from the date of production.
 

Package

 

Standard 300ml plastic plastic bottle packing, 24 pcs/ctn; 500ml flexible film packing, 20 pcs/ctn;200L iron drum.
Store the original sealant in a dry place, the temperature should not be higher than 27 degreesCelsius, from the date of production, the storage period of 12 months.

 

About Us

Company Profile

Nanjing Howell New Material Technology Co., Ltd.
Room 501, Unit 7, Xingzhihui, Xinghuo Rd 19th, Jiangbei New District, Nanjing, (211899), Jiangsu, China.

Acsic Ingredients, LLC.
Add: 565 Metro Place South STE 300 Dublin, OH 43017.

Factory:
No.1008, Panshan Village, Lipu Town, Zhuji City, Shaoxing City, Zhejiang Province, China.