Description
The Geo-Matrix Platinum cushion is Blake Medical's 3.75 inch (9.5 cm) foam-and-gel pressure relief cushion with a Blue gel base. Westin Healthcare fits it in Brampton and across the Greater Toronto Area after a seating check on the chair. Ontario lists the Platinum seating line as SESG00025.
This is the standard Platinum, product code GP, rated 275 lb (125 kg). It is not the Geo-Matrix Platinum Plus bariatric cushion (purple gel, 450 lb). It is not the Hybrid, and it is not the all-gel Silver.
Who this cushion is for
The Geo-Matrix Platinum cushion is for a person whose seating therapist wants a pressure relief cushion with a gel base under a foam core, often on a power chair where Blake calls out vibration dampening. Blake Medical indicates the Platinum for people who need skin protection and gentle positioning with more pressure redistribution, including people with existing skin concerns or a higher risk of skin breakdown.
A seating therapist should confirm the size and the model. This page does not give clinical positioning advice. If you have questions about wounds, posture, or transfers, ask the therapist who assessed you, or call us and we will book that conversation.
Fit and size
A wheelchair cushion should match the wheelchair seat, not a clothing size. Measure the seat width and seat depth on the chair. Blake's Hybrid Series manual, which also covers Platinum, says the cushion width should match the seat, may sit up to 1 inch (2.5 cm) wider against the arm supports, and the depth may run about 1 inch past the seat. The Blake logo faces the front left.
Use Choose Width and Choose Depth for the seat size. Blake's standard Platinum sizes run 16 by 16 through 22 by 22 inches (41 by 41 through 56 by 56 cm). The product code is GP then width and depth, for example GP1818. Custom dimensions are available from Blake.
- Height 3.75 in (9.5 cm)
- Weight capacity 275 lb (125 kg)
- 1 in Blue gel base, dual-density foam, 0.75 in cascading Pillow Top gel
Gel, foam, and care
The Geo-Matrix Platinum is a pressure relief cushion with a full Blue gel base, a dual-density contoured foam core, and a 0.75 inch Pillow Top gel layer that cascades over the front. The gel is a dry-polymer solid. It does not inflate and it does not leak like a fluid pouch.
Each cushion ships with a soft-touch outer incontinence-proof cover and an inner wipeable moisture-proof cover. Both covers machine wash to 60 C. Do not wring them. Lay them flat to dry. Do not use bleach. Do not wet the foam. Wipe the gel, then air-dry the cushion out of direct sun.
Geo-Matrix Platinum cushion specifications
These figures are from Blake Medical's current Platinum card. The specification tab holds the stored values.
Height 3.75 in (9.5 cm). Weight capacity 275 lb (125 kg). Standard sizes 16 by 16 through 22 by 22 inches. Custom sizes available. Product code GP"WxD". Two covers as above. Blake classifies the Platinum for skin protection and gentle positioning with maximum pressure redistribution. Warranty on Blake's hosted cushion brochure is 2 years. Check for bottoming out on first use and after a large weight change.
Platinum, Hybrid, or Silver
Stay here if you want the standard Geo-Matrix Platinum cushion at 3.75 inches and 275 lb. The Geo-Matrix Hybrid Cushion is the 3.5 inch foam-and-gel rung Blake indicates for moderate skin risk. The Geo-Matrix Hybrid Low-Profile Cushion is that Hybrid 1 inch shorter. The Geo-Matrix Silver Gel Cushion drops the foam and uses three gel layers at 2.75 in and 200 lb (91 kg).
Platinum Plus is Blake's 450 lb purple-gel sibling. We do not sell that model on this page. Air, foam, and gel are different jobs. A seating therapist should pick the medium.
Funding help for a wheelchair cushion or back support in Ontario
This cushion or back support is an ADP positioning device category item. Ontario's Assistive Devices Program (ADP) can fund 75% of the cost of positioning devices such as cushions and back supports when they are prescribed through an assessment by an ADP-registered occupational therapist or physiotherapist with an eligible mobility device, and some income-support programs cover the full cost. Not every product qualifies, so talk to us before you buy. March of Dimes Canada, Veterans Affairs Canada (VAC), and community programs can also help. Westin Healthcare's staff work with these programs every week and will point you to the right route for your situation. Visit our funding page or call (905) 451-7743 to talk it through.
Delivery and setup in Brampton and the GTA
Westin's own team delivers and sets up this cushion across Brampton and the Greater Toronto Area. We bring it in, check the size on the chair, and show you the covers and the hook-and-loop hold-down before we leave.
We have three stores in the Brampton and Toronto area if you would rather see a wheelchair cushion first. For a scheduled in-home setup, call (905) 451-7743 and we will book the next date that works. Same-day delivery is offered through our hospital bed rental service; purchased cushions are delivered and set up on a scheduled date.
If the cushion is going outside the GTA, ask us for a shipping quote. Inside Toronto and the GTA, White-Glove Delivery (bring-in, unwrap, test, take packaging away) is described on the shipping policy. Any charge is confirmed on your order.
Related wheelchair cushions from Westin
- Geo-Matrix Hybrid Cushion, the 3.5 inch moderate-support foam-and-gel Hybrid
- Geo-Matrix Silver Gel Cushion, three-layer all-gel at 2.75 in
- Geo-Matrix Bronze Gel Cushion, two-layer all-gel at 2 in
Service and warranty
When something on the cushion needs work, you call the shop that set it up, not a distant parts desk. Westin Healthcare has a service and repairs department. Our technicians come to the home or workplace.
Blake Medical manufacturer warranty
Blake Medical's hosted Geo-Matrix cushion brochure prints a 2-year warranty on the cushion line. We handle the warranty claim with you. Ask us if an extended warranty is offered for your order.
Frequently asked questions
What Size Wheelchair Cushion Do I Need?
The Geo-Matrix Platinum cushion should match the wheelchair seat width and depth. Measure the seat, then use Choose Width and Choose Depth. Blake's standard Platinum sizes run 16 by 16 through 22 by 22 inches, for example GP1818 for 18 by 18.
How Do I Choose Between Gel, Foam, And Air Cushions?
The Geo-Matrix Platinum cushion is a pressure relief cushion with a gel base and a foam core: no inflation, no fluid pouch. Foam-only cushions are a milder contour. Air cushions use cells you set with a pump. Ask the seating therapist which medium fits the assessment.
Does ADP Cover Wheelchair Cushions?
Ontario's Assistive Devices Program can help with a wheelchair cushion or back support after an ADP-registered therapist assessment, when the seating is required with an eligible mobility device. Eligibility depends on the person and the device. Call (905) 451-7743 or use the funding page before you buy.
Is This The Platinum Plus Bariatric Cushion?
The Geo-Matrix Platinum cushion on this page is the standard Platinum: blue gel, GP size codes, 275 lb (125 kg). Blake's Platinum Plus is a separate 450 lb purple-gel cushion. Ask us if you need that sibling.
How Do I Clean A Geo-Matrix Platinum Cushion?
The Geo-Matrix Platinum cushion covers machine wash to 60 C. Do not wring them. Lay them flat. Do not use bleach. Do not wet the foam core. Wipe the gel and air-dry the cushion out of direct sun.
What Does SESG00025 Mean?
SESG00025 is the Ontario seating code printed with the Geo-Matrix Platinum line. Ask us which size is on your order before any funding paperwork starts.
What Is The Weight Capacity Of The Geo-Matrix Platinum?
The Geo-Matrix Platinum cushion is rated 275 lb (125 kg) on Blake Medical's current card. Stay at or under that rating for the size you order.
Does The Platinum Need Daily Inflation?
The Geo-Matrix Platinum cushion does not inflate. The gel is a dry-polymer solid on a foam core. There is no daily calibration step like an air cushion.
What Comes With The Geo-Matrix Platinum Cushion?
The Geo-Matrix Platinum cushion is ordered as the foam-and-gel pad plus the inner moisture-proof cover and the outer incontinence-proof cover for the size you pick. Westin Healthcare delivers and sets it up across Brampton and the GTA.
Specifications
| Height | 3.75 in (9.5 cm) |
|---|---|
| Brands | Blake |
| Warranty | 2-year Geo-Matrix cushion line (2019 Blake brochure still hosted) |
| Weight Capacity | 275 lb (125 kg) |
| Construction | 1 in Blue gel base, dual-density contoured foam, 0.75 in cascading Pillow Top gel |
| Covers | Soft-touch outer incontinence-proof cover; inner wipeable moisture-proof cover |
| Custom Sizes | All dimensions available (Blake) |
| Standard Sizes | 16x16, 16x18, 16x20, 18x16, 18x18, 18x20, 20x16, 20x18, 20x20, 22x16, 22x18, 22x20, 22x22 in |
| Product Code | GP then width and depth, e.g. GP1818 |
| Classification | Skin protection and gentle positioning (standard Platinum, not Platinum Plus) |
| ADP Device Code | SESG00025 (Platinum; confirm current ADP list) |
| Identity | Standard Platinum GP, 275 lb. Not Platinum Plus GPB 450 lb |
Documents
- Brochure Geo-Matrix SitHappy Cushion Catalogue (2026)
- Brochure Geo-Matrix Cushion Comparison Chart
- User Manual Geo-Matrix Hybrid Series User Manual
- All Forms and Documents Every form, brochure and document in one place.
Shipping and Delivery
We deliver and set up equipment across Brampton and the Greater Toronto Area. Our team brings the equipment in, sets it up and shows you how to use it.
Planning a rental? Rental equipment is delivered and picked up by our team within the same service area. Learn about rentals.
To schedule a delivery or ask about timing, call us at (905) 451-7743.
We work with Ontario funding programs
We prepare and submit the paperwork so you get the equipment you need, sooner.
- Assistive Devices Program (ADP)
- Ontario Disability Support Program (ODSP)
- March of Dimes Canada
- WSIB
- Interim Federal Health Program (IFHP)
Questions about this product?
Talk to a local specialist today. We will help you find the right equipment and the funding to cover it.