FASTELFOIL PRO HEAT SEAL ALUMINUM (POLYPROPYLENE)
FastelFoil PRO Heat Seal Aluminum Foil (polypropylene)
FastelFoil PRO heat seal aluminum foil is designed for either direct heat sealing or induction sealing many types of polypropylene surfaces. FastelFoil PRO is constructed with an aluminum foil substrate coated with polypropylene one side and capable of meeting requirements for either peel or puncture methods.
FastelFoil PRO meets the requirements for multiple healthcare, medical device/diagnostic, dry good pharmaceuticals and PCR analysis applications.
FastelFoil PRO is available in custom width rolls or die cut to standard or custom outlines within a variety of formats. Converted die cut formats include individual seals, multiple per master sheet, die cut continuous reels or our FastelFoili PRO-RT200A heat seal array system.
The FastelFoil PRO-RT200A heat seal system allows for seals to be positioned accurately on a special low tack carrier liner to match a required seal array of tubes or chambers. Post heat sealing, the low tack carrier is removed leaving behind independently sealed units.
FastelFoil PRO is available with optional printing and backer films for fluent peel applications.
FastelFoil PRO Features and Benefits
- Excellent seaing performance to polypropylene surfaces
- Robust foil construction | Excellent handling characteristics
- Long term sealing performance against polypropylene
- Puncture or peel applications
- Standard protective clear coating on aluminum
- Inert thermoplastic formulation | solvent free
- Process with direct heat sealing or induction sealing
- Die cut foil arrays format (PRO-RT200A System)
- Paper or PET Film backers available for peel requirements
- Printing available (2 color, random repeat or registered)
- Seal with standard or custom heat seal / induction equipment
- Available in custom rolls, sheets or die cuts
- Rolls and sheets available for standard microplate sealers
Typical PRO Applications
Polypropylene microplates Barrier foil
Polypropylene chambers Microplate sealers
Blister pack | dry goods Pharmaceutical
Bottles and containers Cap or capless setups
To request samples or download the technical data sheet, please click on the respective link located to the right or call:
TF: 1-888-989-3832 (US)
International: +1-949-369-7676.
Typical FastelFoil PRO Material Constructions
FastelFoil is available in a few standard constructions depending on your application requirements. Laminated paper backing or clear PET backing available for peel requirements or gap filling requirements.
Standard Cross Section (puncture)
C1S Paper Backing (peel requirements)
PET Film Backing (peel requirements)
Seal Coating Thickness
- Polypropylene - 0.025mm (0.001")
Aluminum Substrate Thickness
- Aluminum - 0.051mm (0.002")
Foil Backer Options
- C1S - White paper backing (gloss surface finish)
- PET - Clear film backing
General Specifications
- Water vapor transmission: < 0.01 g/m^3 @ 25C/100% r.h.
- Oxygen transmission: <0.005cm^3/m^2 @ 25C/100% r.h.
- Typical seal temperature range: 160C to 190C
- Chemistry: polypropylene seal coating
- RoHS | REACH | Halogen Free Compliant
- FDA 175.105 Compliant Heat Seal Material
Top Side Printing Options
Custom printing available. 2 color maximum in either a random repeat or registered print layout. Solid color flood coating available.
Custom printing is available for rolls, custom slit rolls or die cuts.
Delivery Formats
- Custom and narrow slit rolls
- Die cut individuals
- Multiple die cuts per sheet
- Die cut continuous reels
- PRO-RT200A array system
Custom Foil Array Patterns
A unique capability of FastelFoil is the ability to deliver custom foil seal arrays in panel format. These custom foil arrays are pre-configured to include discrete foil seal placements on a pre-formed low tack carrier liner for heat sealing to multiple tubes/tray configurations within a single heat press cycle. Master tack liner is easily removed post heat sealing.
FastelFoil PRO-RT200A Heat Seal Array
DOE Testing (design of experiment)
When designing a new product, experimenting to determine the suitability of our products within the scope of your applications is key. FastelFoil can be heated using commercially available or custom heating devices such as heat presses, non-contact induction sealers or ultrasonic welding systems. Prior to testing FastelFoil, we encourage our customers to perform a DOE (design of experiment) based upon the FastelFoil melt point and substrate type being sealed as well as other subsequent application sensitivities that may exist. Since all of our customer applications involve various substrate types, substrate thicknesses and heating devices, we strongly encourage our customers to understand the relationship between your heating device's set temperature and what temperature is yielded at the seal line (area where the FastelFoil resides). Understanding the relationship between set temperature and seal line temperature will significantly help narrow the scope of DOE combinations and shorten your process towards optimization.
Preparation | Installation Guidelines
The following are general guidelines to be used as a preliminary basis to determine suitibility of FastelFoil. The below stated values are to be used as a starting point only and should be further tested to determine optimal heating time, temperature and pressure in order to yield the desired result. Since FastelFoil has no pre-determined heating time beyond heating to or past its melt point, it is important to understand the relationship between heating time, heating temperature and pressure applied during heating in order to optimize installation.
PRO Softening Pont | Max Heating
Softening Point: 150C
In order to acheive continuous temperature stability in field use, softening point should be higher than your device's established maximum operating temperature or higher than any post bonding internal temperature stability testing that may be required.
Maximum Processing Heating Temperature
Maximum process heating temperature of the FastelFoil PRO is 190C. Prolonged heating exposure above this temperature may result in seal coating damage.
Surface Preparation
All surfaces should be clean and free debris. Surface can be cleaned with Isopropyl Alcohol (IPA) or solvent. All surfaces should be dry prior to installing seal. Additonal surface treatments may be considered depending on substrate material type and application requirements.
Sealing Temperature
160Cto 190C (full capability)
(Typical application: 160C to 170C)
Heating temperature stated is at seal line (area where foil seal resides). Necessary to acheive adequte wet-out of the seal layer onto the substrate. Seal should not be exposed to temperatures above 375F / 190C.
Heating Pressure
10 PSI to 100 PSI+
Important to maintain good surface contact of the foil seal to the substrate. No set pressure required. Dependent on substrate type, thickness, interface area as well as substrate durability.
Direct Heat Seal Time
3 seconds to 10+ seconds
(variable)
No set heating time required. Dependent on thermal conductivity of substrates and heating devices. Minimum melt point must be acheived. No complex ramp up and ramp down patterns required unless other materials require this during the heating process.
No set heating time required. Dependent on thermal conductivity of substrates and heating devices. Minimum melt point must be acheived. No complex ramp up and ramp down patterns required unless other materials require this during the heating process.
Cooling (set) Time
Variable
Seal should be allowed to adequately cool below its melt point before applying stress. It is recommended (not required) to maintain pressure during cooling to promote surface contact during this process. Forced direct air systems okay to accelerate cooling.
Seal should be allowed to adequately cool below its melt point before applying stress. It is recommended (not required) to maintain pressure during cooling to promote surface contact during this process. Forced direct air systems okay to accelerate cooling.
Viscosity Note
FastelFoil is designed with a specific melt point temperature. Flow control within its melted state is a function of heating temperature and pressure. As the seal is heated further past its melt point temperature, its viscosity continuously decreases. Significant pressure within a low viscosity state can cause seal run-out outside the interface.
Interface Contact
Depending on your heating application setup, an interface pad between the heat source and stack-up may be considered to provide conformability across large interfaces. Soft, mid and hard durometer thermally conductive gap pads can be considered in order to minimize the temperature drop from heat source to seal line (area where FastelFoil resides).
Heating Equipment
Heat Press and Ultrasonic Welding Equipment
Heating can be acheived through the use of off the shelf heating equipment such as heat presses, ultrasonic welding presses, or induction sealing equipment.
Click here to learn more about our recommended heating equipment partner.
Application Assistance
For further assistance and recommendations for installing and heating FastelFilm, please contact us Toll Free at 1-888-989-3832 (US Only) +1-949-369-7676 (International) or e-mail us at info@stretech.com
Request Sample or Technical Data Sheet