Gel-Pak Membrane Boxes (MB)

Membrane Boxes are recommended for devices or large objects that have an irregular shape or non-flat contact surface which will not adhere to a Gel material. Membrane boxes are ideal for shipping 3-D objects such as Test Sockets, Optics, Prisms, Lenses and Crystals.

Membrane Boxes are constructed using a thin, highly elastic transparent polyether polyurethane membrane mounted to the top and bottom halves of a symmetrical POLYREX® PG-33 clear polystyrene box. When the box is closed, the device is suspended between the two transparent membranes which conform to the device shape and securely hold it in place.

The high optical transparency of the membrane box packaging allows for inspection and visual checks without having to open up the box. The membrane boxes are reusable and come in a wide range of shapes and sizes.

MB-55T/25 With Glass Optic | Gel-Pak Membrane Boxes (MB) | Gel-Pak®
MB-55T/25 with Glass Optic
MB-55T/25 Side Profile | Gel-Pak Membrane Boxes (MB) | Gel-Pak®
MB-55T/25 Side Profile
Part Number Membrane Box Description
MB-38T/16 38 x 38 x 16mm Transparent Box
MB-55T/25 55 x 55 x 25mm Transparent Box
MB-J-80B/33 80 x 80 x 33mm Jewelry Membrane Box w/ Black Frame
MB-100x50T/30 100 x 50 x 30mm Transparent Box
MB-100x75SD/30 100 x 75 x 30mm Static Dissipative
MB-100x75T/30 100 x 75 x 30mm Transparent Box
MB-100x75T/50 100 x 75 x 50mm Transparent Box
MB-J-100B/33 100 x 100 x 33mm Jewelry Membrane Box w/ Black Frame
MB-100T/30B 100 x 100 x 30mm Transparent Box w/ Black Clips
MB-100T/30 100 x 100 x 30mm Transparent Box w/ Blue Clips
MB-100T/50 100 x 100 x 50mm Transparent Box
MB-125x100T/30 125 x 100 x 30mm Transparent Box
MB-125T/50 125 x 125 x 50mm Transparent Box
MB-125T/75 125 x 125 x 75mm Transparent Box
MB-J-130B/33 130 x 130 x 33mm Jewelry Membrane Box w/ Black Frame
MB-J-130W/33 130 x 130 x 33mm Jewelry Membrane Box w/ White Frame
MB-150x50T/25 150 x 50 x 25mm Transparent Box
MB-150T/100 150 x 150 x 100mm Transparent Box
MB-180x54T/30 180 x 54 x 30mm Transparent Box
MB-J-180x110B/20 180 x 110 x 20mm Jewelry Membrane Box w/ Black Frame
MB-200x100T/50 200 x 100 x 50mm Transparent Box
MB-J-250x70B/33 250 x 70 x 33mm Jewelry Membrane Box w/ Black Frame
MB-250x75T/25 250 x 75 x 25mm Transparent Box
MB-275x100T/50 270 x 100 x 50mm Transparent Box
MB-225x175T/75 225 x 175 x 75mm Transparent Box
MB-250x200T/50 250 x 200 x 50mm Transparent Box
MB-300T/50 300 x 300 x 50mm Transparent Box

Membrane Boxes

MB-38T/16

Outer Dimensions: 38 x 38 x 16mm
Inner Dimensions: 31 x 31 x 14mm
Maximum Device Size: 25 x 25 x 10mm
Box Color: Transparent
Latch Color: N/A
MB-38T/16 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-38T/16 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-55T/25

Outer Dimensions: 55 x 55 x 25mm
Inner Dimensions: 41 x 41 x 20mm
Maximum Device Size: 35 x 35 x 16mm
Box Color: Transparent
Latch Color: N/A
MB-55T/25 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-55T/25 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-J-80B/33

Outer Dimensions: 80 x 80 x 33mm
Inner Dimensions: N/A
Maximum Device Size: N/A
Box Color: Black Paper
Latch Color: * Jewelry Membrane Box with Black Frame
MB-J-80B/33 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-J-80B/33 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-100x50T/30

Outer Dimensions: 100 x 50 x 30mm
Inner Dimensions: 90 x 36 x 25mm
Maximum Device Size: 80 x 32 x 20mm
Box Color: Transparent
Latch Color: Blue
MB-100x50T/30 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-100x50T/30 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-100x75T/30 & MB-100x75SD/30

Outer Dimensions: 100 x 75 x 30mm
Inner Dimensions: 91 x 61 x 25mm
Maximum Device Size: 80 x 50 x 20mm
Box Color: T - Transparent
SD - Black
Latch Color: T - Transparent
SD - Black
MB-100x75T/30 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-100x75T/30 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-100x75T/50

Outer Dimensions: 100 x 75 x 50mm
Inner Dimensions: 90 x 61 x 46mm
Maximum Device Size: If Z less than 20 80 x 50 x 20mm
If Z greater than 20 70 x 45 x 30mm
Box Color: Transparent
Latch Color: Blue
MB-100x75T/50 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-100x75T/50 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-J-100B/33

Outer Dimensions: 100 x 100 x 33mm
Inner Dimensions: 70 x 70mm
Maximum Device Size:
Box Color: Black Paper
Latch Color: * Jewelry Membrane Box with Black Frame
MB-J-100B/33 | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-100T/30B

Outer Dimensions: 100 x 100 x 30mm
Inner Dimensions: 86 x 86 x 20mm
Maximum Device Size: 80 x 70 x 20mm
Box Color: Transparent
Latch Color: Black
MB-100T/30B | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-100T/30B Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-100T/30

Outer Dimensions: 100 x 100 x 30mm
Inner Dimensions: 86 x 86 x 20mm
Maximum Device Size: 80 x 70 x 20mm
Box Color: Transparent
Latch Color: Blue
MB-100T/30B | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-100T/30B Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-100T/50

Outer Dimensions: 100 x 100 x 50mm
Inner Dimensions: 90 x 82 x 46mm
Maximum Device Size: 80 x 70 x 30mm
Box Color: Transparent
Latch Color: Blue
MB-100T/50 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-100T/50 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-125x100T/30

Outer Dimensions: 125 x 100 x 30mm
Inner Dimensions: N/A
Maximum Device Size: 116 x 82 x 25mm
Box Color: Transparent
Latch Color: Blue
MB-125x100T/30 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-125x100T/30 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-125T/50

Outer Dimensions: 125 x 125 x 50mm
Inner Dimensions: 116 x 103 x 46mm
Maximum Device Size: 100 x 90 x 30mm
Box Color: Transparent
Latch Color: Blue
MB-125T/50 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-125T/50 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-125T/75

Outer Dimensions: 125 x 125 x 75mm
Inner Dimensions: N/A
Maximum Device Size: N/A
Box Color: Transparent
Latch Color:
MB-125T/75 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-125T/75 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-J-130B/33

Outer Dimensions: 130 x 130 x 33mm
Inner Dimensions: N/A
Maximum Device Size: N/A
Box Color: Black Paper
Latch Color: * Jewelry Membrane Box with Black Frame
MB-J-130B/33 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-J-130B/33 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-J-130W/33

Outer Dimensions: 130 x 130 x 33mm
Inner Dimensions: N/A
Maximum Device Size: N/A
Box Color: White
Latch Color: * Jewelry Membrane Box with White Frame
MB-J-130W/33 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-J-130W/33 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-150x50T/25

Outer Dimensions: 150 x 50 x 25mm
Inner Dimensions: N/A
Maximum Device Size: N/A
Box Color: Transparent
Latch Color:
MB-150x50T/25 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-150x50T/25 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-150T/100

Outer Dimensions: 150 x 150 x 100mm
Inner Dimensions: 125 x 125 x 95mm
Maximum Device Size: If Z less than 12 125 x 125 x 12mm
If Z greater than 12 110 x 110 x 45mm
Box Color: Transparent
Latch Color: Blue
MB-150T/100 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-150T/100 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-180x54T/30

Outer Dimensions: 180 x 54 x 30mm
Inner Dimensions: 170 x 40 x 25mm
Maximum Device Size: 160 x 20 x 20mm
Box Color: Transparent
Latch Color: Blue
MB-180x54T/30 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-180x54T/30 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-J-180x110B/20

Outer Dimensions: 180 x 110 x 20mm
Inner Dimensions: 160 x 90mm
Maximum Device Size: N/A
Box Color: Black
Latch Color: * Jewelry Membrane Box with Black Frame
MB-J-180x110B/20 | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-200x100T/50

Outer Dimensions: 200 x 100 x 50mm
Inner Dimensions: 188 x 83 x 45mm
Maximum Device Size: N/A
Box Color: Transparent
Latch Color: Blue
MB-200x100T/50 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-200x100T/50 Technical Drawing | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-J-250x70B/33

Outer Dimensions: 250 x 70 x 33mm
Inner Dimensions: 220 x 40mm
Maximum Device Size: N/A
Box Color: Black
Latch Color: * Jewelry Membrane Box with Black Frame
MB-J-250x70B/33 | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-250x75T/25

Outer Dimensions: 250 x 75 x 25mm
Inner Dimensions: 241.5 x 51mm
Maximum Device Size: N/A
Box Color: Transparent
Latch Color: Blue
MB-250x75T/25 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-250x75T/25 | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-225x175T/75

Outer Dimensions: 225 x 175 x 75mm
Inner Dimensions: N/A
Maximum Device Size: N/A
Box Color: Transparent
Price: $26.09
MB-225x75T/25 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-225x75T/25| Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-250x200T/50

Outer Dimensions: 250 x 200 x 50mm
Inner Dimensions: N/A
Maximum Device Size: N/A
Box Color: Transparent
Price: $28.26
MB-250x200T/50 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-250x200T/50 | Gel-Pak Membrane Boxes (MB) | Gel-Pak®

MB-300T/50

Outer Dimensions: 300 x 300 x 50mm
Inner Dimensions: N/A
Maximum Device Size: N/A
Box Color: Transparent
Price: $32.31
MB-300T/50 | Gel-Pak Membrane Boxes (MB) | Gel-Pak® MB-300T/50 | Gel-Pak Membrane Boxes (MB) | Gel-Pak®