Technical data sheet
NuFlex® 302 Hi-Temp Silicone Sealant
To add to cart, choose from the options below.
Maintains elastic properties between -80 to 600°F
NuFlex Hi-Temp silicone is a one-part 100% silicone with a toothpaste-like consistency. It cures when it is exposed to moisture in the air to form a tough rubbery seal.
NuFlex® 302 HT was formulated to perform at temperatures ranging from --65°C to 260°C (-85°F to 500°F) under continuous operating conditions. During intermittent exposure, NuFlex® 302 HT will withstand temperatures as high as 316°C (600°F). It is ideal for a number of sealing and bonding applications.
NuFlex® 302 HT was formulated to perform at temperatures ranging from --65°C to 260°C (-85°F to 500°F) under continuous operating conditions. During intermittent exposure, NuFlex® 302 HT will withstand temperatures as high as 316°C (600°F). It is ideal for a number of sealing and bonding applications.
| Product # | Finish/Color |
|---|---|
| 94160090 | Black |
| 94160080 | Red |
ADVANTAGES AND BENEFITS
- NSF Approved
- 100% Silicone
- 100% RTV
- Adheres to many substrates
- Withstands up to 316°C (600°F)
- Permanently flexible
- Quick curing
- Moisture, heat and vibration resistant
- Multiple uses
- 100% Silicone
- 100% RTV
- Adheres to many substrates
- Withstands up to 316°C (600°F)
- Permanently flexible
- Quick curing
- Moisture, heat and vibration resistant
- Multiple uses
TECHNICAL SPECIFICATIONS
Brand
Nuco
Base
100% RTV Silicone
Optimal Adherence to
Aluminum, Steel
Features
High Heat Resistance, Thermal Resistance
Tack-Free / Skin Over Time
10 to 20 minutes
Tooling Time
Immediately tool the sealant
Packaging Specifications
Plastic Cartridge
VOC Concentration (EPA Method 24)
30 grams per liter
Recommended Use
Marine / Recreative Vehicle
Volume
300 ml
Standards and Certifications
NSF
APPLICATION
Ideal for
- Encapsulating heating elements in appliances
- Aerospace gasketing
- Moving oven belts
- Industrial ovens
- Bag filters on smoke stacks
It is also used in applications for other critical bonding, sealing, potting, encapsulating and protective coatings where parts must perform at high temperatures. There are also many applications for NuFlex® 302 Hi-Temp in and around automobiles, RVs, boats and in small engines. It can be used for making and/or replacing expensive paper and cork gaskets in water pumps, timing chain/belt covers, rocker covers, heat risers, and any area where high temperatures and vibration are prevalent.
- Encapsulating heating elements in appliances
- Aerospace gasketing
- Moving oven belts
- Industrial ovens
- Bag filters on smoke stacks
It is also used in applications for other critical bonding, sealing, potting, encapsulating and protective coatings where parts must perform at high temperatures. There are also many applications for NuFlex® 302 Hi-Temp in and around automobiles, RVs, boats and in small engines. It can be used for making and/or replacing expensive paper and cork gaskets in water pumps, timing chain/belt covers, rocker covers, heat risers, and any area where high temperatures and vibration are prevalent.
IMPORTANT INFORMATION
Do not use in direct contact with fuels such as gasoline or diesel fuel.
NuFlex® 302 Hi-Temp is supplied ready-to-use. It flows readily from its container under pressure. The paste-like consistency makes it easy to work with; a spatula or wooden paddle can be used to tool the surface.
Tack-Free Time: Curing progresses inward from the surface. At conditions of 25°C (77°F) and 50% relative humidity, a tack-free skin forms within 10-20 minutes. Tooling should be completed immediately after application. If masking tape is used to mask an area, it must be removed before the tack-free skin forms.
Cure-Time: Cure time is affected by relative humidity, degree of confinement and cross-sectional thickness of the sealant. Sections up to 3.2 mm (1/8") thick become rubbery solids in about 24 hours at room temperature and 50% relative humidity. In applications where NuFlex® 302 Hi-Temp may be partially or totally confined during cure, the time required for proper cure is generally lengthened by the degree of confinement. Every application involving confinement during cure should be thoroughly tested before production commences. Curing time increases with the thickness of the sealant. A 12.7 mm (1/2") cross section for example, may require 3 or 4 days for complete cure. However, the cure will have penetrated the outer 3.2mm (1/8") in about 24 hours.
NuFlex® 302 Hi-Temp is supplied ready-to-use. It flows readily from its container under pressure. The paste-like consistency makes it easy to work with; a spatula or wooden paddle can be used to tool the surface.
Tack-Free Time: Curing progresses inward from the surface. At conditions of 25°C (77°F) and 50% relative humidity, a tack-free skin forms within 10-20 minutes. Tooling should be completed immediately after application. If masking tape is used to mask an area, it must be removed before the tack-free skin forms.
Cure-Time: Cure time is affected by relative humidity, degree of confinement and cross-sectional thickness of the sealant. Sections up to 3.2 mm (1/8") thick become rubbery solids in about 24 hours at room temperature and 50% relative humidity. In applications where NuFlex® 302 Hi-Temp may be partially or totally confined during cure, the time required for proper cure is generally lengthened by the degree of confinement. Every application involving confinement during cure should be thoroughly tested before production commences. Curing time increases with the thickness of the sealant. A 12.7 mm (1/2") cross section for example, may require 3 or 4 days for complete cure. However, the cure will have penetrated the outer 3.2mm (1/8") in about 24 hours.
DISCLAIMER
The information and data contained herein is BASED ON INFORMATION WE BELIEVE TO BE RELIABLE. Please read all statements, recommendations or suggestions herein in conjunction with our CONDITIONS of SALE which apply to all goods supplied by us. We assume no responsibility for the use of theses statements, recommendations or suggestions, nor do we intend them as recommendations for any use which would infringe any patent or copyright.
