FDA-compliant PU seal for direct contact
with food – the international standard for
food packaging
The polyurethane (PU) foam seal from determined for total
Sonderhoff in the FERMAPOR® K31 migration in the seal material
product range received sought-after are below the threshold
American FDA conformity. It is considered value in the EU Regulation
to be the recognised standard for food No. 10/2011 of 10 mg/
packaging worldwide. The FERMAPOR® dm². The odour and flavour
K31 seal is applied automatically, as well as the appearance
precisely and seamlessly in the lid groove and consistency of the food
of drums and hobbocks using the Formed contained in the lidded drums
In-Place Foam Gasket process. The PU are not changed as a result.
seal is also approved for direct contact
with food in accordance with the EU Optimal characteristics
Regulation No. 10/2011 which entered profile for the FDA-compliant
into force on 1 January 2016. PU seal
“With the FDA conformity
The FERMAPOR® K31 polyurethane of our food-safe seal in the
foam with FDA conformity is used as FERMAPOR® K31 range, we are able to
a seamless lid seal for food containers offer our customers in the food packaging
with a filling volume from two litres. It industry around the world the price and
is suitable for use in direct contact with technical advantages of a PU foam seal
aqueous, acid, alcoholic, fatty and dry for the first time,” says Peter Fischer,
raw food materials. This also applies for Head of Marketing at Sonderhoff.
cold or hot filled or pasteurised milk and The polyurethane-based FERMAPOR®
for milk products. The right ratio of the K31 lid seal with FAD conformity is
contact surface of the seal surface to the characterised by low water absorption,
filling volume must be adhered to here. optimal adhesion to plastic and metal,
• In accordance with Regulation and outstanding long-term behaviour
(EU) No. 10/2011 (formerly EC No. of the seal effect. The foam seal in the
1935/2004): lid groove is compressed when the
Contact surface max. 100 cm²/5600 packaging container is closed and returns
cm³ (30 kg contents) for aqueous, almost entirely to normal. The tightness
acid, alcoholic, fatty and dry foods as of the lid seal thus remains intact.
well as milk and milk products Through consistent further development
In accordance with the U.S. Food and of the mechanical properties, Sonderhoff
Drug Administration (FDA): has specifically improved the tear
• resistance and elongation at break of
•
Contact surface max. 35 mm²/
dm³ for all foods, the FDA-compliant foam seal. Container
• lids sealed with the food-safe foam from
Contact surface max. 93 mm²/
dm³ for fat free foods
Sonderhoff remain tight even with drops,
The FAD-compliant FERMAPOR® shocks and vibrations.
K31 foam seal for food packaging is Sonderhoff produces other PU foam seals
characterised by excellent migration which, as a whole with the containers,
behaviour for the seal material used in meet the sealing requirements for
the formula. drop tests certified packaging with UN
Experts from independent testing approval.
Fully automated seal insertion using the
FIPFG process
The fully automated application process
using FIPFG sealing technology is very
economical and efficient, particularly
for medium-sized and large production
runs. The high process reliability of the
Sonderhoff dispensing machines ensures
quick, precise and clean insertion of
material into the lid groove.
The polyurethane-based, FDA-compliant
FERMAPOR® K31 food-safe foam cures
at room temperature to form a flexible
foam seal. Investments in tempering
ovens are not required and an additional
production step is thus eliminated.
www.sonderhoff.com
institutions certify that the values
FDPP - www.fdpp.co.uk 51