What kind of grease can be used on outdoor screws to avoid rust


As the name indicates, anti-seizure compounds are special type of compounds which prevent seizure of metal components used on ships.

Seizure of metals may happen due to variety of reasons which includes corrosion, high temperatures, galling, vibration, humid conditions, and caustic environment etc.

It is often found that seafarers have a misunderstanding between the functions of lubricant and anti-seize compound. A lubricant might not have anti-seizing property, however all anti-seizure compounds will definitely have lubricating property, especially at high temperatures.

In environmentally adverse conditions such as high humidity and salinity, extreme pressure, acidic atmospheres or excessive temperatures, metals can fuse or weld together.

The chief culprit of seizure of metals is corrosion, particularly in marine surroundings. Corrosion happens due to galvanic action between two metals.

By applying an anti-seizure compound between metals,...

0 0

Humidity definitely attacks freshly blasted steel, to what degree and to what end result is the question..... The profile (depth/roughness) of the blasted steel also plays a role because you can expose more (or less) surface area depending on the blast.

For the inside of the drum all you need is a "brush blast" or "commercial blast", this will remove the paint and scale build-up but won't give you a deep profile.

For the outside of the drum you might opt for a "near white" blast. This will clean the surface better than the brush blast, but more importantly it will give you a little more profile for the primer to anchor to. A good primer job is the important layer in any paint system.

As far as timing your oiling of the inside and curing of the primer... you might opt to reverse your plan. After blasting, and when you get your drum home... you could warm up the drum (with charcoal or with your weed burner from the inside) Just warm, not blazing hot. This would...

0 0

Someone suggested automatic transmission fluid in another thread.

I can strongly suggest NOT to use garage door opener screw drive lubricant, which is a grey silicon grease. I tried it on my Z-axis rods on my Prusa i3 and now I'm waiting for Home Depot to open so I can replenish my supply of spare M5 nuts...

When I saw the right Z-axis nut was stripped I decided to remove the left Z-axis nut (shown in reverse order in the attached picture) and found that it was almost completely stripped.

Without lubricant they were squeaking which is not a good sign but this type of stripping usually comes from having something gritty. There could be some wood carbon from the laser cut wood parts but I'm inclined to blame the lubricant.

My problem is that I also have insufficient clearance at the bottom of the shaft for a proper stepper motor linkage so I'm concerned about lighter lubricants like light machine oil or sewing machine oil...

0 0
Select the screw of choice and treat the screw with corrosionx. Purchase reject or corrosionx from www.corrosionx.com Apply at room temp not to exceed 80 deg f for the first few hours. Immune from Salt water, battery acid, florida salt spray, high temps

Stainless steel is more noble than most materials and will result in corrosion of adjacent materials.
Aluminum corroses so fast that a protective coating immediately forms on the exterior surface before further corrosion can occur.
Galvanized coating and paint will eventually peel off and corrode to the core within a year or two at ambient conditions.
Wood screws will not corrode but will eventually rot. Pressure treated wood screws will last for over 40 years without rot.
Plastic screws will not rot, rust, or corrode but will loose structural strength within a few months due to sunlight or UV deterioration.

Coating with silicone sealant will prevent corrosion if the base material is not disturbed....

0 0

I have repaired many craftsman circular saws over the years and find that they share some parts with other brands. When sears drops a model number you must try to discover who made it for them. You did not list a model number, however when I need to identify a saw w/o the number I look at old part breakdowns and look on ebay for similar looking saws. Try and identify which manufacture made it for sears. Many were made by skill over the years so I start there. Once I find a good match, I check for available new parts. If not available, I check pawn shops and small tool repair shops for used parts, even burned out armature then have it rewound at


If you value your old saw take the extra time to look around, if not buy a good used saw at a pawn shop. I prefer Makita or Milwaukee good used about 40-70$; good used craftsman 20-30$, take a good look at the armature commutator and check that the arbor bearing is tight. Good Luck and email if you have...

0 0

We used the C-Clamp to push in the caliper. On our Toyotas, we would usually open the bleeder and allow it to drain out when pushing in the piston, being very careful to not allow any air back in. After talking it over with others who have the ABS system, it didn't seem to be necessary on our Fords as the brake line is part of that system and there is some risk to get air in those lines. You'll notice the brake pedal in the driver seat has dropped as soon as you push those pistons in. If you decide not to bleed the brakes, then plan to have the job done same day and test driven at the end of the day. Do not leave caliper pistons pushed in overnight.

If you choose to take the cap off the bleeder and unscrew it before tightening in the piston, that's your choice, but you'll need to make sure someone is gently pumping the fluid through by stepping on the brake pedal when ready to tighten it. The brake fluid needs to make it's way through this line and onto the brakes without...

0 0

The real secret to dealing with rust is to remove as much of it as possible before trying to apply a new finish. Depending upon the configuration of the item in question, removing rust can be a tedious process that requires lots of elbow grease. In the end, your goal is to remove the rust down to bare metal.

When stripping a fixture of rust, you need to remove any rusted screws and fasteners — which is sometimes easier said than done because the rust can cause the fasteners and the metal structure to freeze together. Here are some ways you can remove rusted fasteners:

Saturate the fastener with cutting oil: The cutting oil helps dissolve a small amount of the rust and acts as a lubricant to help free up some frozen connections. In combination with a screwdriver, pliers, or a wrench, cutting oil can be a favorable ally.

Don’t count on using penetrating oil to remove rust. Penetrating oil breaks down a certain amount of rust, but it isn’t considered a good rust...

0 0

There is a lot of misinformation and misconceptions with rust proofing / under coating/ rust prevention; for which I hope to provide some clarity and direction.

First, remember that rust is like an iceberg, you only see 10% of it. Moisture normally gets trapped for the longest duration of time in the places that you can not see (and have little ventilation).

Second, in many cases, rust starts from the inside and works its way out. This is also why when you go to fix rust by trying to grind away to fresh metal you end up chasing it until you have perforated the metal.

Rust proofing is always worth doing, but only if you select the proper rust proofing methods.


Most German and luxury automakers like BMW, Mercedes and Porsche rust proof their cars from the factory. This is to prevent rusting during storage and more importantly to aid against rust that may develop from sea water, rail dust, and road salt during shipping.

What they...

0 0

The easiest way to prevent rust on screws is to shield them completely from moisture, be it through selective placement or protective coatings and sealants. Purchasing specially formulated, rust resistant or rustproof screws is usually helpful, as well. Many of the most effective rust prevention tools must be purchased commercially at hardware or home improvement stores. Depending on the types of screws at issue, a number of home remedies may also work.

Rust is the result of a chemical reaction between certain metal compounds and water vapor. The presence of certain oxidizing agents, particularly salt, tends to increase a metal’s propensity to rust. Screws that are used outdoors or in moist environments like bathrooms or swimming pools are particularly prone to rusting. The best way to shield screws from the moisture latent in their surroundings is by covering them with some form of a protective sealant.

Commercial anti-rust solutions often come in the form of liquid...

0 0

Rust. Whether it's a car, boat, bike, or piece of garden furniture, it's a corrosive scar, the sight of which is enough to make your heart sink.

Technically, rust is iron oxide and occurs when iron, or a compound containing iron is exposed to oxygen over a long period. Moisture, usually water, accelerates the process; to see how quickly water can speed up the rusting process, run a piece of steel wool under a tap for a few seconds and watch.

Not only is rust unsightly, it's damaging to the metal. The longer you leave it, the more it corrodes until eventually it's eaten it away completely.

Here are six ways to remove it.

1. Use vinegar

Acid, specifically citric acid or acetic acid, is a great way to remove rust, particularly if it has formed on parts which can be easily removed and soaked. If, say, you want to remove rust from screws, remove the screws and soak them in vinegar. Take a half-litre plastic bottle, and put the screws inside. Pour in...

0 0

15.1. If the heat transfer capacity in a heat exchanger is dropping, the following action should be taken:a). Clean the heat transfer surface16.1. Chlorine is used in the cooling water system to:a). Prevent biological growth17.1. To evaluate the condition of a heat exchanger the following measurements should be recorded:a). In and outlet temperatures, and flow rates for both media18.1. In a refrigeration system, the condenser cooling water regulating valve is directly controlled bythe:a). Compressor discharge pressure19.1. Water hammer is a shortblasting pressure peak travelling along the pipe. How can it be avoided ina cooling water system?a). Operate valves gradually20.1. Erosive tube failure in a heat exchanger could be the result of:a). Excessive cooling water velocity21.1. Reduced capacity accompanied by vibration and noise at the suction of a centrifugal pump resultsfrom the action of vapor pockets in the fluid being pumped caused by:a). Cavitation22.1. The heat required to...

0 0

Rust is a griefer’s paradise. There’s nothing quite like finding a guy sleeping in a forest and looting him before he wakes up, or camping outside another player’s fort and killing her when she opens the door. For those who enjoy deadly games of cat and mouse, Rust might just be the best survival game out there. But anybody more interested in building and exploration, or isn’t able to devote themselves to one game, may have a rough time.

Even though other games are better at specific elements like crafting, combat, survival, and exploration, I’ve never played a survival game that combines them quite like Rust. The way it blends survival and competitive genres is fun, especially if you enjoy the goofier bits, like firing rocket launchers at a naked man running from a pig, or being stabbed to death by a person blasting Russian music over their microphone and brandishing a spear. It’s weirder and less polished than the competition, but that’s part of the fun.

Every time...

0 0
Brakes:Brakes: FAQ Home Volvo Maintenance FAQ for 7xx/9xx/90 Cars Version 5.0

Brake Caliper Identification. [Query:] Does anyone know if there is a way to tell which of the two caliper types (ATE or Girling) my 740 GLE is using without removing the wheels?
[Response: Paul Grimshaw] Refer to the product plate (located above passenger front headlight or in the trunk or door jamb). Go to position "E" (end of the second line on the right). The following codes apply:

2: Girling Front, ATE Rear
3: DBA Front, ATE Rear
4: Girling Front and rear
5: DBA Front, Girling Rear

If I recall correctly, there's also a Bendix front caliper too, but Volvo does not list this as an item on the product plate. The best way is to...

0 0

1. Does PVC trim require a primer?

A primer is only needed if you want the paint manufacturer’s warranty. Excellent adhesion can be achieved by properly cleaning the board before applying a topcoat of paint to PVC trim. (Refer to painting guidelines in the Versatex contractor handbook for more information on painting PVC trim.)


2. What type of paint do you recommend for coating PVC trim?

Just about any 100% acrylic latex, or 100% acrylic latex with a urethane additive, can be used to achieve superior coating durability and flexibility. Lacquers are not recommended with PVC trim because lacquers are a more brittle coating, and will not flex with any movement in the PVC trim. Paints like Duration by Sherwin Williams, Manor Hall paints by PPG and Moorelife by Benjamin Moore adhere well to PVC trim.

Paint on PVC trim will last three to five times longer than paints on wood or wood composites due to the absence of moisture in the substrate....

0 0

A little back of the hand math, ball-parking the size of the roof compared to the volume of the container, told us that one inch of rain would be enough to fill the whole container. Sure enough, when we finally did get some rain, less than an inch filled it most of the way up!

After we installed the gutter modifications, we cleaned the gutters real well. This is a typical asphalt shingle roof, and the grit from the shingles DOES come off. We flooded the gutters, and rinsed the entire roof, with the output of the gutters diverted from the storage tank. Next, we are adding gutter-guard screens to the full length of both gutters, as well as our short section that combines both downspouts.

Although a metal roof is ideal for rainwater collection, this building was re-roofed not long ago with the asphalt shingles. The water will be used for general irrigation, and not for watering animals or human consumption.

Because of the angle and direction that the...

0 0
0 0