BLOCK-IT 400 car covers

BLOCK-IT 400 car covers

Sunblock for your car!

The BLOCK-IT 400 Technalon® / Evolution®4 is made of a unique multi-layer fabric which is made up of 4 layers of material for extra strength against severe conditions. Technalon®/Evolution®4 is a 100% sun-proof, breathable material with a water resistance rate of 90%. This high tech fabric also resists tears, rips and punctures. This cover provides great protection against mud, dirt, bird droppings, acid rain, strong winds, snow and even cats! Great for long term storage either outside or garage kept. Can also be used every day by an experienced car cover user. Block-It 400 uses the same type of UV protection chemistry found in clear coat paints.This diagram shows the four distinct layers of the BLOCK-IT 400 fabric.


There are two factors that enable the Block-It 400 to have superior protection:

Fabric Construction: Thickness And Pore Size are critical parameters for increasing UV resistance. Block-It 400 has four layers of protection: Two layers consist of microfibers.

Finishing: Kimberly-Clark Uses a unique two Part UV protection system: UV blocking and UV inhibiting chemistries.


  • Naturally Moisture Resistant - Acid rain, industrial pollutants, tree sap and bird droppings will not harm the fabric.
  • Dries Easily - Moisture is not absorbed by the fabric fibers.
  • Breathable - Allows air to circulate through the fabric.
  • Dust/Pollution Barrier - The two middle layers of melt-blown fabric act as a filtration barrier against most airborne pollutants as small as 0.1 microns (smaller than talc).
  • Impact Absorption - 4-layer thickness absorbs impacts better than any other vehicle cover fabric to help protect the finish from nicks, dings, dents and scratches.
  • Double stitched overlapped seams
  • Neoprene elastic hems – the elastic in the front and rear hems helps hold the cover in place

Reinforced, non-scratch grommets – use a tie-down rope (supplied) or a vinyl coated cable and lock (optional)

The BLOCK-IT 400 Evolution fabric is a durable outdoor cover. This fabric offers an excellent balance of UV resistance, weatherproofing, waterproofing, and dust protection. This is the best value for an outdoor car cover. It’s not as lightweight as NOAH, but an experienced car cover user can manage it daily.The BLOCK-IT 400 offers great outdoor protection at a great value.

This fabric is available in custom and ready fit. Click on the order button below and follow the instructions to select your cover. Exact pricing will be displayed once you have selected your cover.

Antenna openings – All Covercraft covers are made to fit vehicles with retractable antennas. If your vehicle does not have a retractable antenna, you will need to make a small opening in the fabric. Please indicate in the comment box of your order that you need an antenna grommet and we will be happy to send you one at no extra charge.

Mirror Pockets – If your vehicle was manufactured before 1965, the cover you receive may not have mirror pockets, even if it is a custom cover. If the pattern for your particular vehicle does not include built-in mirror pockets, we can send you mirror pockets for free, but they will not be sewn into the cover. Call us for details. This only applies to pre-1965 models. If your vehicle was made after 1965, your custom car cover will have mirror pockets already sewn into the cover. You get Covercraftsmanship in every Covercraft car cover!

Choose from these three attractive colors.

4 year limited warranty

Due to manufacturer delays, please allow 3-4 weeks for delivery.

Contact a sales representative for assistance with placing your order and for shipping time.1-800-869-3011

Car Cover Storage Bag – Fold up you cover and keep it neatly tucked away in the trunk or garage. This bag will keep it clean and dry.

Car Cover Lock – Thread the vinyl-coated cable through the cover’s grommets and attach the lock to secure the cover to your vehicle and deter thieves.

Custom covers start at $129.95
Ready Fit covers start at $99.95

Order a Custom Cover Order a Ready-Fit Cover

Covercraft items ship from the manufacturer via ground service with an estimated ship time of 3-4 weeks. Expedited and international shipping are not available. Addition discounts do not apply to Covercraft products.