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1.  Only empty fuel tank in a well 

ventilated area and away from 

ignition sources. Remember 

butane is heavier than air.

2.  Depress the filler valve at the 

back of the tank with a small 

bladed screwdriver and let the 

butane gas escape through the 

small orifice opening. It takes 

approximately one minute for the 

butane to escape from the tank. 

Be careful that the butane does 

not hit against your fingers or 

hands. This could cause frostbite 

of the skin.

3.  One method is to poke a small 

bladed screwdriver through a 

piece of paper and then 

How to Empty Tank of Butane Gas if Needed

carefully depress the filler valve. 

The escaping gas will hit the 

paper and not your hand.

4.  Never turn gas lever to “ON” 

and allow gas to evacuate 

through the ejector/tip. Doing 

this will clog the ejector and 

lead to premature failure.

5.  Never try to unscrew the filler 

valve as it is adhesively bonded 

to the tank. Breaking of this 

bond will destroy the unit, 

causing the tank to leak.  

WARNING:

 By-products of the combustion of the fuel used by this 

product contain chemicals known to the State of California to cause 

cancer and reproductive harm.

WARNING:

 The Department of Transportation Hazardous material 

Regulations forbid the carriage of butane or other flammable gas 

products on passenger aircraft. Do not pack this item or any other 

flammable gas item, in any checked or carry-on baggage.

WARNING:

 Do not clean or remove the adhesive with solvent. May 

cause fire. For additional health and safety information, see the product 

label and Material Safety Data Sheet for the Master Adhesive used. 

To reduce the risk of injury or property damage, 

READ AND UNDERSTAND the following 
warnings:

1.  The Glue Gun contains flammable gas under 

pressure. Use with care.

2.  Keep out of reach of children.
3.  Use only Master Appliance Ultratane Butane 

Fuel to insure maximum safety and 
performance. MSDS upon request.

4.  Do not fill gas, use or store near open flame, 

heater, furnace or combustible materials.

5.  Always point away from face and body  while 

igniting or operating.

6.  The nozzle gets hot during operation. Do not 

touch the nozzle, melted glue or main exhaust 
port when hot or place them on a flammable 
object.

7.  Hot gases are emitted from all exhaust slots. 

Do not leave Glue Gun unattended.

8.  Wait for nozzles to cool before changing. Keep 

hands and combustibles from nozzle area 
while in use.

9.  Use only glue sticks designed for use with 

hotmelt glue guns. Do not use liquid or paste 
adhesive.

10. Make sure the adjustment knob is firmly closed 

and the flame is completely extinguished after 
using.

11. To prevent fuel tank leakage, do not store in 

environmental area that exceeds 104°F/40°C 

Important Safety Instructions

Use only Master Ultratane butane with your Glue Gun. 
Do not fill gas or store near open flame, heater, 
furnace or combustible materials. Make sure the unit is 
cool before re-fueling and that the switch is turned to 
the “OFF” position. Fill gas holding the unit firmly with 
the refill nozzle pointed upwards. Insert nozzle into the 
gas filling valve and press down. Use pumping action 
for best results (Fig. 1). Gas will overflow from nozzle 
when tank is full. After filling allow the gas to stabilize 
for a few minutes before lighting.

Fill with Ultratane

®

 Butane

1.  Use only 1/2” diameter glue sticks. Insert glue stick 

through tunnel at the back of gun (Fig.3).

2.  To start fuel flow, squeeze and slide (fig 3) switch to 

“ON” position. You will hear a  “hissing” sound.

3.  Push the “Ignition Switch” to ignite the flame. Hold for 

about 5-10 seconds before releasing (Fig. 4).

4.  After igniting, the ceramic elements inside the air 

vent will glow “red” (Fig. 5). Tip the gun forward on 

folding stand under the nozzle to stand the gun. Wait 

for a few minutes for it to heat up and allow the glue 

to melt and soften.

5.  During operation of your glue gun, gas flow is 

thermostatically controlled for optimum fuel efficiency 

and to maintain the glue melt chamber temperature 

at 280F to 320F.  Gas will flow intermittently 

depending on chamber temperature.  

NEVER LEAVE UNIT UNATTENDED WHEN 

GAS IS ON.

Ignition Instructions

1. Direct nozzle tip at any clean/dry surface you wish to 

bond. Check for proper adhesive selection.

2.  To apply melted adhesive use steady finger pressure 

on feed trigger. Release feed trigger to stop flow of 

adhesive.

3.  Do not use excessive pressure on feed trigger.
4.  Insert 1/2 inch glue stick into transport mechanism 

as needed.

Adhesive Application

1. Make sure the ON-OFF button is in the full OFF position. (fig. 3).
2.  Stand the folding base to rest the glue gun and cool the nozzle, 

before storing.

3. Store in proper location avoiding elevated temperatures and 

away from children.

4. Leave tank approximately 1/2 full so lubrication of fuel pickup 

filter remains wet.

Trouble Shooting

Problem 

Does not ignite 

Low Gas Pressure 

Low/No adhesive 

flow

Probable cause

1.  Empty tank 

1.  Low fuel
2.  Cold fuel

1.  No heat

2.  Plugged tip

3.  Glue gun unit not at 

proper operating  
temperature

Solution

1.  Check window of tank and 

refill with butane fuel  

1.  Refuel with butane gas.
2.  Gently shake to warm fuel up.
*  Use indoors only - Minimum 

ambient temp 59°F.

1.  See information above –  

Does not ignite.

2.  In the event the applicator tip 

is blocking adhesive flow you 
may clear the tip with a small 
nail or paper clip.

3.  Allow unit to heat up for  

4 minutes after ignition.  

Do not force adhesive.

Storage of Your P

ORTA

P

RO

® Glue Gun

(such as car dashboard or trunk, direct 
sun, glove compartment, or other 
enclosed, unventilated areas).

12. Use only in well-ventilated area. 

Continuous or extended use indoors 
should be done only with a local exhaust 
ventilation to the outside.

13. Do not expose to open flame or other 

sources of high temperature.

14. Always use safety glasses or goggles.
15. Do not misuse, abuse, alter or tamper.
16. Do not try to open the gas tank. Do not 

puncture or incinerate.

17. Do not immerse in water.
18. Under no circumstances should you 

attempt to repair a damaged glue gun.

19. It is your responsibility to follow your 

governmental regulations when  

 

disposing of this unit.

NOTE:

 For health and safety information, see 

product label and Material Safety Data Sheet 
for Master Adhesive before using.

NOTE: 

When operating in extremes of 

temperature (hot or cold), at high altitude, 
ignition may be difficult due to the variation of 
gas pressure caused by these extremes. Gas 
control settings will also be affected and will 
vary from those under normal conditions. If 
difficulties are experienced, please contact 
our Customer Service Department.

OFF

Warnings:

!

CAUTION:

 Allow applicator to cool to room temperature before 

servicing. Failure to do so 

may cause burns

.

CAUTION:

 Do not pull adhesive cartridge from the rear of the applicator 

while in operation. Removing adhesive from the rear may cause molten 

adhesive to flow out the rear of the applicator which may cause burns 

and damage the applicator.

CAUTION:

 Avoid contact with hot adhesive and the applicator tip.  

May cause burns.

 Wear safety glasses and gloves when using.

CAUTION:

 If molten material comes in contact with skin 

DO NOT 

ATTEMPT TO REMOVE!!!

 Cool glue with cool water and/or ice as 

quickly as possible and seek medical assistance if burn is over a  

large area.

Cautions:

!

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