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Product Information

Jowatherm-Reaktant

609.40, the PUR hot

melt adhesive for bonding MDF boards in ABS

frames for manufacturing top panels of house-

hold appliances.

High initial strength and low creep tendency of the

bond are key to the automated processes neces-

sary for large production quantities in the manu-

facture of “white goods” like washing machines,

refrigerators and dish washers.

The PUR hot melt adhesive Jowatherm-Reak-

tant

609.40 supplied by Jowat supports auto-

mated processes and facilitates fast downline

processing and fast packaging.

Its very good resistance to moisture and heat al-

lows household appliances to meet the high re-

quirements placed on them during everyday use.

Jowatherm-Reaktant

609.40 is a PUR assem-

bly adhesive with outstanding stability in the melt

and high initial strength. Chemical crosslinking of

the adhesive takes place within 1 to 3 days de-

pending on ambient conditions, i.e. temperature,

humidity and material moisture.

One-component, reactive polyurethane hot

melt adhesives (PUR HM) are characterised

by an additional chemical reaction with mois-

ture after the physical solidication. During

that crosslinking reaction, smallest amounts

of CO

gas are formed, most of which evapo-

rates from the adhesive lm. At room temper-

ature, the small amount of CO

gas is gener-

ally invisible to the human eye. The chemical

reaction is triggered by ambient humidity and/

or material moisture in the substrates. PUR

hot melt adhesives therefore have to be pro-

tected from moisture during production, stor-

age and processing to prevent a premature

crosslinking of the adhesive. After complete

curing, PUR hot melt adhesives cannot be

melted again and have a high resistance to

water, solvents and cleaning agents.

INFO: PUR hot melt adhesives

Jowatherm-Reaktant

609.40

Assembly adhesive for manufacturing top panels of household appliances made of ABS frames and

MDF boards.

Polymber basis PUR

Processing temperature [°C] 110 – 130

Open time at 120 °C [Min.] approx. 2 ± 1

Reaction time [d] 1 – 3 (depending on ambient conditions)

Density [g/cm³] approx. 1,1 ± 0,1

Viscosity at 120 °C [mPas] 7,500 ± 1,500

Appearance opaque

The information given in this leaet is based on test results from our laboratories as well as on experience gained in the eld, and does in no way constitute any guarantee of properties. Due to

the wide range of di󰀨erent applications, substrates, and processing methods beyond our control, no liability may be derived from these indications nor from the information provided by our free

technical advisory service. Before processing, please request the corresponding data sheet and observe the information in it! Customer trials under everyday conditions, testing for suitability

at normal processing conditions, and appropriate t-for-purpose testing are absolutely necessary. For the specications as well as further information, please refer to the latest technical data

sheets.