Dupli-Color® Engine Enamel contains Ceramic Resins for maximum heat dissipation and gloss retention. The resins offer protection from exposure to excessive heat and automotive fluids. Excellent for under-the-hood applications, Dupli-Color Engine Enamel will perform to the most rigorous standards of racing, street rod, and vehicle restoration enthusiasts. This durable formula resists temperatures up to 500°F intermittently and produces a superior finish that will not blister, flake, crack or peel.
Features EZ Touch® Conical NozzleMaximum heat dissipation and high gloss retentionCeramic resins resist heat up to 500®FDry to touch in 30 Minutes / Handle in 1 HourResistant to oil and other automotive fluidsWill not blister, flake, crack, or peelFor Use on engine blocks and engine accessories
Yes. Armor All® Protectant products are specially designed to protect, clean and shine rubber surfaces. Using Armor All® Protectant regularly is an easy way to help protect your rubber surfaces from cracking, UV damage, fading or discoloration.
The iPhone 12 models are the first iPhones to offer next-generation 5G cellular connectivity. Carriers have claimed that 5G speeds are almost twice as fast as 4G, and Apple spent a considerable amount of time during its launch event hyping up the new tech. But 5G coverage is patchy across the US, and your experience will vary depending on where you live. Some areas have absolutely zero coverage, while other parts (mainly big cities) have 5G networks from all major US carriers. The bottom line is: There is no universal 5G experience, so it's important to research the 5G coverage in your area. If you do upgrade, at the very least you can take comfort in knowing your device is future-proof as 5G continues to expand this year and the next.
New to the iPhone line is the iPhone 12's ceramic-hardened glass known as Ceramic Shield, which Apple says offers four times more drop protection. During our Phone 12 drop test (and subsequent iPhone 12 Mini drop test), CNET's former editor Vanessa Hand Orellana concluded that the Ceramic Shield seems indestructible. The iPhone 12's screen survived without a crack after it was dropped six times on a sidewalk, including three back-to-back drops from a height of nine feet.
If you can physically see where the leak is coming from, it may be best to have said component replaced. In this instance, it sounds as though you may have a crack in the reservoir tank, allowing coolant to drip out. If you are not 100% sure where the leak is coming from, it would be best to bring the vehicle to a mechanic for a proper diagnosis.
I have a 2005 Toyota Highlander with a 3.3L engine. There are no visible leaks, nothing is cracked or damaged, I replaced the radiator cap already, there is no coolant in the oil, oil level stays perfect, there is no sweet smell or dampness on the floor, however, I am using about a gallon of coolant every 2-3 weeks. It seems to go low faster if I need to accelerate more quickly. I have always maintained my fluids regularly do you have any idea where else the coolant could be going? Thanks
To remove the shields from Ball Bearing races, you need a very sharp hook. I use a Dai Ichi size 13 AJI hook. These are very sharp but the points do get bent (as in this picture) so always use new hooks when you find difficulty in removing the bearing shield retainers.
Handle bearings have shields held in place with a C clip#81 Handle Large Bearing size is 11mm x 7mm x 3mm. #80 Handle Small Bearing size is 9mm x 5mm x 3mm (OD x ID x Thickness). They have removable shields held in place by a C clip.
To take shields apart, locate the very tiny gap (so do this with optical assistance and bright lighting) formed at the ends of the C clip. Pry one end out with a sharp hook. If you are unable to pry the end out, it means your hook is not sharp enough.
A basic PCB consists of a flat sheet of insulating material and a layer of copper foil, laminated to the substrate. Chemical etching divides the copper into separate conducting lines called tracks or circuit traces, pads for connections, vias to pass connections between layers of copper, and features such as solid conductive areas for electromagnetic shielding or other purposes. The tracks function as wires fixed in place, and are insulated from each other by air and the board substrate material. The surface of a PCB may have a coating that protects the copper from corrosion and reduces the chances of solder shorts between traces or undesired electrical contact with stray bare wires. For its function in helping to prevent solder shorts, the coating is called solder resist or solder mask.
Each trace consists of a flat, narrow part of the copper foil that remains after etching. Its resistance, determined by its width, thickness, and length, must be sufficiently low for the current the conductor will carry. Power and ground traces may need to be wider than signal traces. In a multi-layer board one entire layer may be mostly solid copper to act as a ground plane for shielding and power return. For microwave circuits, transmission lines can be laid out in a planar form such as stripline or microstrip with carefully controlled dimensions to assure a consistent impedance. In radio-frequency and fast switching circuits the inductance and capacitance of the printed circuit board conductors become significant circuit elements, usually undesired; conversely, they can be used as a deliberate part of the circuit design, as in distributed-element filters, antennae, and fuses, obviating the need for additional discrete components. High density interconnects (HDI) PCBs have tracks and/or vias with a width or diameter of under 152 micrometers. 
Moisture absorption occurs when the material is exposed to high humidity or water. Both the resin and the reinforcement may absorb water; water also may be soaked by capillary forces through voids in the materials and along the reinforcement. Epoxies of the FR-4 materials are not too susceptible, with absorption of only 0.15%. Teflon has very low absorption of 0.01%. Polyimides and cyanate esters, on the other side, suffer from high water absorption. Absorbed water can lead to significant degradation of key parameters; it impairs tracking resistance, breakdown voltage, and dielectric parameters. Relative dielectric constant of water is about 73, compared to about 4 for common circuit board materials. Absorbed moisture can also vaporize on heating, as during soldering, and cause cracking and delamination, the same effect responsible for "popcorning" damage on wet packaging of electronic parts. Careful baking of the substrates may be required to dry them prior to soldering.
To take advantage of network economies, the United States and other countries shield their postal services from competition in exchange for delivering mail to far-flung and poorer regions. Like transportation and communications networks that are often publicly owned or function as regulated utilities, a national service with standardized pricing promotes commerce and guards against the concentration of economic power.
Governments around the world have for centuries understood the benefits of postal monopolies (USPS 2020d). In addition to the competitive advantage the Postal Service has as an established network, it has a legal monopoly on mail delivery, shielding more lucrative delivery routes from competition to help it extend service to less populated and poorer areas, fulfilling its universal service obligation (USPS 2008b, 2020d). Since 1934, the Postal Service has also had a monopoly on accessing mailboxes, a monopoly that rival United Parcel Service (UPS) has lobbied to end (Sullivan 2019). Like road, rail, electricity, communications, and other networks that are often publicly owned or function as regulated utilities, a national service with standardized pricing promotes commerce and guards against the concentration of economic power.
The universal service obligation is a great equalizer. Though it costs more to transport letters and packages to and from far-flung and less populated areas, this difference is not reflected in the postage. You can mail a letter from Kotzebue, Alaska, to Homestead, Florida, with the same stamp you would use to mail it across the street in New York City. Regulated pricing and uniform service also help small businesses compete with large ones, fostering entrepreneurship and helping counter the concentration of economic power. Though companies can negotiate bulk discounts with the Postal Service, these are overseen by the Postal Regulatory Commission to guard against favoritism. Many services, such as Parcel Select Lightweight for parcels weighing under a pound, have a uniform price regardless of sender.
While competitors try to crack the postal monopoly, they resist Postal Service efforts to expand its competitive business. Former Postal Service Inspector General and Board Vice Chair David C. Williams, among others, has pointed out that the Postal Service could offer more services to offset the fixed cost of maintaining post offices and daily delivery (USPS OIG 2015b; HSGAC 2016; Brookings 2015b). Post offices, for example, could offer many printing and other services provided by FedEx Office and The UPS Store, and expand the use of parcel delivery lockers (USPS OIG 2013). Likewise, mail carriers could pick up and make deliveries from local stores, including groceries (Chandler 2014).
Postal banking is not an either-or proposition. It can be introduced incrementally and in partnership with other nonprofit financial institutions. Whatever the pros and cons of different approaches, shielding for-profit providers from competition should not factor into the discussion. The fact that the Postal Service may have a cost advantage over other providers should not matter as long as consumers, especially low-income consumers, benefit. 2b1af7f3a8