Northern Diver Divemaster Commercial Manual Download Page 8

NDiver Drysuit Manual  |  East Quarry, Appley Lane North, Appley Bridge, Wigan, WN6 9AE, UK 

Latex / Neoprene Neck & Wrist Seals

Some models of Northern Diver drysuits are fitted with flexible latex neck and wrist 

seals for watertight integrity.

Trimming latex seals to fit

Latex seals have concentric raised ridges 

functioning as cutting guides to assist you 

to accurately trim the seals to fit. The seals 

are slightly tapered so they get larger when 

trimmed. Using a sharp pair of scissors, 

trim one ring off at a time until the seal is 

comfortable but still snug on your neck and 

wrists. Use care and precision with sharp 

scissors when trimming ridges. Leave a 

smooth surface, as ragged edges can allow 

tears to form, which will require replacement 

of the seal.

WARNING

Do not trim too much, or the seals become too loose and may leak. Make 

sure you cut the seals cleanly and leave no nicks that can develop into 

a tear. Blood flow can be restricted by seals that are too tight, which can 

ultimately lead to injury or death. Do not wear the seals too tight.

Storage & maintenance

Store the drysuit so the seals are dry, cool (below 25°C) and out of direct sunlight. 

Ultraviolet light will degrade the latex over time. If the seals have been exposed 

to cold temperatures, they will become stiff and lose their flexibility. This condition 

is not permanent and can be resolved by a brief immersion in warm water. Before 

storing the suit for any length of time, dust the seals inside and out with pure talc 

(supplied in the maintenance kit) as a preservative. Do not use perfumed cosmetic 

talc, as it contains oils, which can damage the latex. Do not use oils or lotion on 

the seals. Avoid contact with copper.

Possible allergy risk

A small percentage of people have an allergic reaction to natural latex, the material 

from which the neck and wrist seals of some models are manufactured. This 

allergy can range from mild to severe skin rash and itching. It is the responsibility 

of the user to pre-determine if he or she has a latex allergy, or to recognise it 

during use, and discontinue use of the suit until the problem can be rectified. 

This usually means removing the latex seals, and installing new seals made of 

alternative materials.

If you are in any doubt regarding your ability to trim the seal correctly, call into 

Northern Diver or return your suit with instructions of how many rings you require 

to be removed. This work will be carried out free of charge, but may be subject to 

postage/courier charges.

Maintenance/How To Adjust: Drysuit Seals

Summary of Contents for Divemaster Commercial

Page 1: ...NEOPRENE DRYSUIT MANUAL...

Page 2: ...suit system To show our thanks for your custom use the code MANUAL18 online or over the phone to claim 10 off your next order Code can be used for one order only not valid in conjunction with any othe...

Page 3: ...neoprene neck and wrist seals Applications for Use 13 Pre dive suit checks Post dive suit checks Inspection intervals Risk Assessment 14 Hyper hypothermia Change of buoyancy with depth Loss of thermal...

Page 4: ...ng in a drysuit Undertake a complete drysuit diving course with a certified instructor and from an officially recognized approved training agency Always dive with a buoyancy compensator Become familia...

Page 5: ...e and generally requires less added insulation worn under the suit than the tri laminate for most conditions Every seam receives an application of three coats of neoprene adhesive The outside is sewn...

Page 6: ...ing caught in the zip and that the zip has been fully opened before you put on your drysuit Failure to open completely may result in the zip being damaged The zip must be fully opened before you remov...

Page 7: ...ti magnetic zip the zip slider is connected to the pull handle by a special bronze wire We advise you to lubricate the zip before every use to prevent the wire from detaching from the slider If too mu...

Page 8: ...ght will degrade the latex over time If the seals have been exposed to cold temperatures they will become stiff and lose their flexibility This condition is not permanent and can be resolved by a brie...

Page 9: ...ur head and be able to squat on your knees without restriction while wearing the drysuit and the heaviest undergarments you intend to wear The suit should not be tight in the crotch or too long If leg...

Page 10: ...adjust so they support the weight of the suit When present fold the neoprene outer cuffs back away from the seals Insert first arm all the way taking care with the seal when pushing hand through Repea...

Page 11: ...hose To check the proper function of the exhaust valve turn it to the OPEN or position and crouch to your knees The suit should deflate and you should hear the air escaping from the valve Removing the...

Page 12: ...and neck seal has been removed before attempting to remove the cuffs 1 To remove the wrist seal pull on the lower arm to release your elbow inside the suit Push down allowing the suits arm to roll ov...

Page 13: ...e EVERY dive make sure the suit is in good condition by checking the following No visible damage to materials or accessories anywhere on the suit Check latex or smooth skin neoprene seals for small te...

Page 14: ...there may be combinations of cold surface conditions and cold water or hot surface conditions and cold water It is important to know your own personal thermal safe range to avoid over heating or beco...

Page 15: ...riction of blood flow causing loss of feeling in the extremities or lack of oxygen to the brain Seals that are too tight will also restrict blood flow Inflation gases We recommend using air for inflat...

Page 16: ...ement due to use and wear Seal leaks Seals leak for two reasons damage or interference Check the seals for holes or tears caused by sharp objects wear and tear or chemical damage Check that there are...

Page 17: ...pplied in the maintenance kit allowing 15 minutes drying time between each application Note Rub the first coat of Suit Seal in thoroughly until it soaks into the material ensure the Suit Seal isn t ju...

Page 18: ...at you do not undertake any diving without adequate backup or redundancy in your buoyancy device ensure you are trained in the use of your buoyancy device to ensure a safe return to the surface Inflat...

Page 19: ...or death 2 Improper use or misuse of a drysuit can result in exposure to thermal hazards and rapid body overheating or cooling which could result in stroke seizure hypothermia and death 3 This manual...

Page 20: ...ore the suit away from areas accessible to them Keep copper away from the latex seals Drysuits are best stored on the Northern Diver Multi Purpose Hanger see page 27 that hangs the suit upside down by...

Page 21: ...l of the drysuit clearly visible when the zip is opened This label gives more information on the suit and includes washing instructions manufacture date and repairs service log your label may differ s...

Page 22: ...you attempt to service the valves yourself as this may result in damage not covered by the warranty If you experience problems with the operation or performance of your valves please return them to No...

Page 23: ...damaged internal seams Circular neoprene repair patches are also included for use on the interior of your drysuit when it has a puncture or tear 12 Month Guarantee If you experience a fault within th...

Page 24: ...HEAD OFFICE Northern Diver International Ltd East Quarry Appley Lane North Appley Bridge Wigan Lancashire WN6 9AE UK PHONE 44 0 1257 25 44 44 EMAIL info ndiver com VISIT www ndiver com...

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