PUR 503.9

Medium viscosity hot melt adhesive with
good initial tack for
gluing edges and

preliminary application of glue -
melt onto the edge for the purpose

subsequent activation
Application area
Gluing
• polyester edges
• melamine resin edges
• PVC, PP and ABS edges with treated
reverse side primer
• uncompacted, impregnated with resin
paper edges
• solid wood and veneer edges
Advantages
• universal application
• quick melting in an oilcloth
• suitable for pre-application
onto the melamine edge to
subsequent activation
Glue properties
Base: EVA copolymer
Density: approx. 1.48 g/cm3
Viscosity
- Brookfield HBTD Sp. 27/10 rpm:
at 200°C: 90.000 ± 20.000 mPa s
at 220°C: 50.000 ± 20.000 mPa s
Melt index according to DIN 53 735
(MFI 150/2.16): 50 ± 15 g/10 min
Softening point according to “ring and ball” DIN 1995:

100±5°C
Application temperature:
200 - 210°C

Lower temperatures lead to errors in
bonding, higher temperature during
over a long period of time harms the glue and leads to its
decomposition, so thermostats are necessary
adjust correctly.
Delivery form:
granulate
Color number: ivory-20
Marking: Not subject to marking
according to EU regulations
(see safety data sheet)

Even if the prescribed
hot melt adhesive processing temperatures
pairs are released. At the same time, they often appear
unpleasant odors. If within
for a long time significantly
prescribed temperatures are exceeded,
there is a danger of harmful
decomposition products. Therefore it is necessary
take measures to eliminate vapors by installing
exhaust ventilation.
Processing equipment
• automatic edge banding
roller glue machines
• automatic edge banding
nozzle glue injection machines
• pre-coating machines
hot melt adhesive on film
Recycling
The backing for gluing the edge must
be precisely squared, cleaned
from dust. Slabs and edges must be
acclimatized to temperature
premises. Most favorable
moisture content of wood materials is 8-10%.
The room temperature should not be lower than
18°C, drafts must be avoided.
Temperature control
Measure regularly and, if necessary,
regulate the laboratory temperature,
bimetallic or electrical contact
thermometer directly in the system
applying glue. Thermostats can after
long period of work give inaccurate
indications.
Feed rate
Edge gluing: 20-40 m/min, more
high speed possible after
conducting your own experiments.
Application quantity
The amount applied should be
so that the hot melt glue around the edges is slightly
acted as beads. Availability control
continuous film is produced using
clear hard PVC edges.

Hot melt adhesive for gluing edges 774.8

Glue consumption during preliminary
application: 80 - 100 g/m
2
Post-processing
The materials being bonded can immediately
be post-processed
(sawing, milling, planing, etc.)
Cleaning
Working tools can be cleaned
KLEIBERIT Cleaner 827.0

Package
KLEIBERIT SK 774.8
Bag 25 kg net
Container 500 kg net
Big bag 750 kg net
KLEIBERIT Cleaner 827.0
Tin canister 4.5 kg net
Storage
KLEIBERIT SK 774.8 is stored in a closed
original packaging for 2 years.
Should be stored in a cool and dry place
room.

As of 0214; replaces previous ones
editorial staff